The method of liquid treatment of skins and device for its implementation

 

The way in which the skins are loaded into the drum unit, served the working solution and the drum receives the rotation by moving the skins in the working solution, followed by recirculation of the working solution and unloading skins. This recirculation of the working solution is carried out on the combined circuit of two or more devices in accordance with the technological scheme consistent with the operational flow of the working solution is prepared for the drum directly from another drum with a complete loop through the total for the combined path filtering-pressure sump. The processing is carried out depending on the number of drum machines in the combined circuit with simultaneous parallel combination of two or more operations of the same process. The invention also relates to a device for carrying out this method. The proposed apparatus and method provide improved performance and efficiency of the process liquid in the processing of skins. 2 ad and 3 C.p. f-crystals, 6 ill., 1 PL.

The invention relates to leather and fur industry and is aimed at improving devices for liquid handling tanning is abode skins, which piece in the processing of hides and skins in the straightened condition of the solution through the nozzle (Patent SU # 1838425, IPC 14 In 15/00, 1993).

This method piece of processing is inefficient and unproductive.

There is also known a method liquid continuous processing of raw hides and semi-finished product with a rotary system in the bath with a working solution (A. C. SU # 1467090, IPC 14 15/00, 1989)

This method is also inefficient, since the processing is carried out individually. In addition, these two ways are the most effective in technological schemes with full single-piece production from raw materials to the finished products and ineffective in mixed schemes of batches and individual processing.

Also known methods of processing raw materials and semi-finished leather liquids in the apparatus with a stationary casing (tanks, barges, and so on) and moving drums. The closest way to the technical essence and the achieved result is a method of liquid treatment of skins, in which the skins are loaded into the drum unit, served the working solution and the drum is driven, moving the skin in the working solution, after which the skins are unloaded. This recycling of working the enterprises for the production of leather and fur”, Feet, Light and food industries, 1981, S. 34-35, Fig. 1.16).

The described method is more efficient, since the processing of batches is, moreover, unlike similar schemes, recycling saves part of this solution.

However, batches of liquid processing hides and skins and semi-finished products separate drum apparatus has a limit performance due to their individual closed-loop scheme. The operations of loading, unloading, delivery of a working solution, etc. are completely excluded from the immediate treatment, and often require a full stop of the apparatus. In addition, the recirculation system of the apparatus used in this method does not provide a complete recirculation of the working solution. Thus, the disadvantage of this method is the low productivity and economiccost process.

A device for liquid treatment of skins for the implementation of liquid-based processes, consisting of a pair of horizontal conveyor belts with actuators and processing unit with nozzles for supplying solution passing between the conveyors skins. (Patent SU # 1838425, IPC 14 In 15/00, 1993)

This device has low productivity and processing efficiency.

Ize tub with a working solution, the rotary drum type with operating shafts, feed and discharge conveyors and brush roll with reversible rotation. (A. S. No. 1467090, IPC 14 15/00, 1989).

Known design also has a low productivity and efficiency, due to the routine processing of skins. In addition, these designs are not suitable to use on plants with mixed processing schemes (batch and individually).

Also known for the design of a device for liquid treatment of skin firm “Valero” (Italy), consisting of a device with a driving drum containing the manhole with lid and recirculation systems working solution (A. Burmistrov, and other Equipment of the enterprises for manufacture of leather and fur), Light and food industries, 1981, S. 34-35, Fig. 1.16).

The design has a better performance, but not sufficient, because for unloading and loading the skins need to stop the drum, while the supply of the solution can be done without stopping. In addition, this design has a low efficiency because there will be losses of solution when uploading skins, and the recirculation system does not provide a complete circulation of the solution, because this requires an intermediate tank of the same, Abyei device adopted method, implemented on the device company “Valero” (Italy).

The objective of the invention is to increase the productivity and efficiency of the process liquid in the processing of skins.

This object is achieved in that according to the method of liquid treatment of skins, in which the skins are loaded into the drum unit, served the working solution, and the drum receives the rotation by moving the skins in the working solution, after which there is recirculation of the working solution and unloading skins, recycling the working solution is carried out on the combined circuit of two or more devices in accordance with the technological scheme consistent with the operational flow of the working solution is prepared for the drum of a different drum with a complete loop through the total for the combined path filtering-pressure sump, and processing is carried out depending on the number of drum machines in the combined circuit with simultaneous parallel combination of two or more operations of the same process. If you need to restore a working solution or its complete replacement feeding or cooking it is after fixing the low quality solution, any reel of the combined path. In addition to the contour of, which has the lowest quality through total for the combined path filtering-pressure sump.

The task is achieved by the fact that the device for liquid treating skins comprising apparatus with a driving drum hatch and lid and recirculation systems working solution, the latter is in the form of integrated circuit, including pipelines connecting the drums two or more devices according to the technological scheme, individual pits with cassettes for each unit and the common filtering-pressure sump, combined with individual pit one of the devices and connected trays with individual pits other devices of the circuit. The combined loop recirculation system working solution is connected by pipelines with a total supply line to the water and the recharge capacity with concentrated working solution. Filtering and discharge pit is made in the form prescribed in the concrete deepening steel tanks in a quarter of the volume of each of the reels, provided with the inclined separation filter mesh, submersible pump and level sensor. In addition, filtering and pressure sump is connected to the cleaning system is produced, onicescu tube which is further provided with a collar made of resistant plastic material.

Recycling the working solution of the combined circuit of two or more drum machines with consistent operational flow of the working solution is prepared for the drum of a different drum with a complete loop through the total for the combined path filtering-pressure sump allows you to get the most optimal way liquid leather processing. The process can be made fully continuous and fully save the working solution, which, in turn, will save reagents and water. For different processes liquid processing - soaking, pickling, tanning, dyeing and other, the circuit combines different number of drum machines, depending on the operation modes and technological schemes of these processes. Pumping from the drum into the drum through a common filtering-pressure sump allows you to monitor the quality of the solution in one place branched recirculation circuit and regardless of the number of devices in the circuit has only one pump, which is also economical. In addition, when pumping from drum to drum completely excluded losses, in addition to institutions the possibilities of this method.

Treatment with simultaneous parallel combination of two or more operations of the same process, depending on the number of drum machines in the United contour improves the performance of each process liquid processing. For example, in a circuit containing a 3 reel, the process can be made fully continuous, since the unloading of the processed skins from one drum with the subsequent loading of raw material, preparation of a new solution in the other drum and the processing in the third reel, you can combine time. Of course, for each process individually. In addition, some schemes merged path, you can use the two volumes of working solution. When full automation of these processing schemes can increase performance even more.

Recharge the concentrate of working solution or cooking it in case of low quality in any drum combined scheme enables you to combine, say, the process is reset, load, etc., in any other drum.

Reset depleted or polluted working solution from any drum of the combined path through the common filtering-pressure sump allows also compatible with the total system reset.

All this improves the performance and efficiency of the process liquid in the processing of skins.

The execution of the recirculation system of the working solution in the form of integrated circuit, including pipelines connecting the two drums, and more vehicles, individual pits with cassettes for each unit and the common filtering-pressure sump connected with the individual pits trays, you can create a schema with a wide range of technological capabilities and for different processes liquid processing. The presence of individual pits with cassettes allows you to quickly unload the processed skins and without loss solution. And after Oceania it with the skins through a perforation in the tape rapidly move them to the next operation using, for example, electric hoists.

Association of individual pits using trays with a total of filtering-pressure sump allows you to efficiently monitor, clean up, and promptly submit the solution according to the technological regime.

The connection of the United recirculation circuit solution with a common supply line to the water and the recharge capacity with concentrated working solution allows you to quickly restore the solution to normalnoja as installed in concrete deepening steel tanks in a quarter of the volume of each of the reels, provided with an inclined separation filter mesh, submersible pump and level sensor, allows for pumping solution from the drum into the drum to produce pumping due to the difference in volumes in several portions, adjustable level sensor, which makes quickly to fill the capacity of the pit and quickly pump out the solution. This leads to the fact that the reagents do not have time to settle as sludge, and suspended pumped into another drum, in addition, the solution is not much time to cool off, the drive to lower costs further heat. A filtering mesh inclined and separating capacity of the pit into two parts allows you to wash off due to the slope of the new portion of the solution all precipitation on the net, and the division contributes to the isolation and the accumulation of these deposits in one part of the tank, and connected to the system for treatment of industrial effluents through the locking device. Reset is when you open the locking device, while the conical tube with a rubber collar out of the nozzle, and the jet discharged solution flows into the pipe, washing and accumulated before precipitation.

The inventive design allows you to create flexible production congesting the inventive method and to solve tasks for improving the productivity and efficiency of the method of liquid treatment of skins.

The method of liquid treatment of skins and device for its implementation are illustrated by diagrams, in which Fig.1 shows the scheme of an integrated circuit recirculation of the solution with three devices; Fig.2 - scheme of an integrated circuit with two devices of Fig.3 - section a-a in Fig.2 (apparatus with individual pit with cassette), and Fig.4 - section b-B in Fig.2 (a device with a total of filtering-pressure sump, combined with individual pit), and Fig.5 shows the filtering-pressure sump of Fig.6 - section b-b In Fig.6 (locking device).

A device for liquid treatment of the skin is composed of the drum apparatus 1, the individual pits 2 cassettes, 3, total filtering-pressure sump 4. Filtering-pressure sump 4 consists of a set in concrete deepening steel tank 5, provided with the inclined separation filter mesh 6, submersible hydraulic pump 7 and level sensors 8 and 9. In addition, the capacity of the installed locking device 10, includes swivel axis 11 of the lever 12 with a tapered tube 13 with a rubber collar 14. The top cover 15 of the pit fastened the latch 16 to the pivot arm. Individual and filtering and discharge pits are interconnected naklonnym water supply, the recharge capacity of 20 to concentrate the working solution and system treatment of industrial effluents 21.

The method of liquid treatment of skins disclosed in the description of the operation of the device. In one of the drums 1 of the consolidated schema loaded skins, filled with the working solution and begins the process. At this time, the loading of the second drum. After the processing in the first reel by rotating it in the opposite direction due to the inclined shelves unloads skins in the cassette 3 pits 2. The working solution passing through the perforation of the cassette 3, pit 2 trays 17 flows into the common filtering-pressure sump 4. The solution, falling on the inclined separation filter grid 6, filtered, thus on the net linger all suspension and solution contamination. The solution being filtered through the grid fills the tank 5, actuates the upper level sensor 8 and a submersible pump 7 starts to pump the purified solution in the drum of the second device with the downloaded skins. Upon receipt of a solution pump 7 may operate continuously, and can be included several times, at the lower level of the solution in the vessel 5 tracks of the second level sensor 9 (bottom). Since the volume of the tank 5 in chest in the sediment. This saves reagents and energy to heat the solution. After pouring the second drum 1 there starts the processing, and the first drum is loaded skins. Then the process proceeds to the contrary. The quality of the working solution is determined and recorded in filtering-pressure sump 4. Low quality solution (lean solution) is recharge from recharge capacity 20 with concentrated working solution, if necessary, you can add water from line 19 of the water supply. When a poor solution (when the processing of skins already inefficient) or heavily contaminated after unloading skins in the cartridge 3 and the overflow solution of the trays 17 in filtering and discharge pit is opening conical tube 13 by rotation of the lever 12 on the axis 11 and released it in the retainer 15, and the container 5 is connected with a system of treatment of industrial effluents 21 and the solution is removed from the combined path. At this time in one of the drums 1 is the preparation of a new solution, after downloading the skins. When different processes liquid processing can be combined with different number of devices, everything depends on the characteristics and duration of each process.

Example.

Technological oborozuki processes, held in the drum type “Rotoball volume of 5 m3large quantities of clean water and chem. materials for preparation of reagent solutions.

The proposed method provides due to the reuse of solutions for the reduction of water consumption and the consumption of expensive chemicals.

The share of chemical materials in the process of treating skins of approximately 40%. This method allows you to raise this figure to 60%. The most important indicator, is also rational use of water, reduced its consumption by 3-4 times and thus reduced and significant costs of cleaning it up and reset.

Significantly increases the efficiency of the process by eliminating the loss of time for cooking and heating solutions to the desired temperature, and discharge of waste solutions in the sewers.

Thus, the proposed method and the device provides higher process performance liquid working hides, skins and can significantly improve their efficiency.

Claims

1. The way the ban gets rotation, moving the skins in the working solution, followed by recirculation of the working solution and unloading skins, characterized in that the recirculation of the working solution is carried out on the combined circuit of two or more devices in accordance with the technological scheme consistent with the operational flow of the working solution is prepared for the drum directly from another drum with a complete loop through the total for the combined path filtering-pressure sump, and processing is carried out depending on the number of drum machines in the combined circuit with simultaneous parallel combination of two or more operations of the same process.

2. The method according to p. 1, characterized in that if you need to restore a working solution or a complete replacement, recharge or cooking it is after fixing the low quality of the solution in any drum combined circuit and reset depleted or polluted working solution made from any drum of the combined path, which has the lowest quality through total for the combined path filtering-pressure sump.

3. A device for liquid treatment of skins, consisting of a device of the recirculation system of the working solution is made in the form of integrated circuit, including pipelines connecting the drums two or more devices according to the technological scheme, individual pits with cassettes for each unit and the common filtering-pressure sump, combined with individual pit one of the devices and connected trays with individual pits other devices of the circuit, moreover, the combined loop recirculation system working solution is connected by pipelines with a total supply line to the water and the recharge capacity with concentrated working solution.

4. The device according to p. 3, characterized in that the filtering and discharge pit is made in the form prescribed in the concrete deepening steel tanks in a quarter of the volume of each of the reels, provided with the inclined separation filter mesh, submersible pump and level sensor working solution.

5. The device under item 3 or 4, characterized in that the filtering-pressure sump connected to the system for treatment of industrial effluents through the shut-off device made in the form of a swivel lever-cork mechanism, a tapered tube which is provided with a collar from a durable plastic material.

 

Same patents:

The invention relates to light industry, namely the preparatory and finishing processes of fur production

The invention relates to the production of wool and can be used in breeding work on the improvement of the breeds of sheep in the determination of fractional composition of grease wool, will allow to define the technological value of the grease as feedstock for production of wool grease, and lanolin, to implement a differentiated approach in development of technological processes for primary wool processing

The invention relates to chemical agents for the treatment of the hide, hides, skins or leather, in particular, to a degreasing tools for processing raw material containing collagen and can be used in the manufacture of tennis and musical strings, leather and fur industry and leagalities industry and in the manufacture of surgical suture material (catgut)
The invention relates to methods for the regeneration of spent solutions containing toxic chromium compounds, for example, leather and fur industries

The invention relates to light industry, particularly for leather and fur production

The invention relates to light industry, particularly for leather and fur production

The invention relates to light industry, particularly for leather and fur production
The invention relates to leather production, in particular to the way we produce natural pile skin from the skins of cattle, intended for the manufacture of Shoe uppers, garments and leather goods
The invention relates to leather production, in particular to the way we produce natural pile skin from the skins of cattle, intended for the manufacture of Shoe uppers, garments and leather goods
The invention relates to leather production, in particular to the way we produce natural pile skin from the skins of cattle, intended for the manufacture of Shoe uppers, garments and leather goods
The invention relates to the leather industry, in particular to a method of treatment of skin obtained from raw materials of cattle intended for the manufacture of Shoe uppers, garments and leather goods
The invention relates to the leather industry, in particular to a method of treatment of skin obtained from raw materials of cattle intended for the manufacture of Shoe uppers, garments and leather goods
The invention relates to the leather industry, in particular to a method of treatment of skin obtained from raw materials of cattle intended for the manufacture of Shoe uppers, garments and leather goods

The invention relates to fur production and can be used with hairline finish furs

The invention relates to leather manufacture, and can be used for the production of leather for the top and bottom shoes

The invention relates to the fur industry, namely the lines tanning of fur raw materials in Cyrano-dyeing workshops

The invention relates to a process of preserving the skins of animals and can be used in meat processing plants and slaughterhouses as a method and device for the preservation of raw hides
Up!