Installation for production of filtering material
FIELD: production of charcoal-fibrous adsorbents.
SUBSTANCE: the invention is dealt with the field of production of charcoal-fibrous adsorbents, in particular, with devices of charcoal-fibrous materials activation. The installation contains a vertical furnace for activation of a carbon fabric and a conjugated with it steam generator, which are connected to the power source and a control unit. And at the furnace output there is a reception device. At that the furnace contains a through heated muffle, through which the treated charcoal-fibrous fabric is continuously passing. At that the muffle is located inside the detachable heat-insulating furnace body, on the inner side of which there are heating elements. Besides at the furnace outlet there is a movable container with water, in which the lower end of the through muffle is dipped. The invention offers an installation for production of activated charcoal-fibrous material, which ensures a continuous process of treatment of the charcoal-fibrous material with an overheated steam and formation of the activated fabric with high mechanical properties and a cellular structure, simple in assembly and reliable in operation.
EFFECT: the invention ensures production of the activated fabric with high mechanical properties and a cellular structure, simple in assembly and reliable in operation.
8 cl, 4 dwg
The invention relates to the field of production of carbon adsorbents, namely, devices activated carbon fiber materials.
Known vertical apparatus of continuous action (English patent No. 1310011, CL 01 In 31/07, 31/30, 1973), in which one chamber of the combined processes of activation and carbonization of the material. Heating is electric heating elements mounted on the two panels between which is served in the form of a tape material; here moves the tube oxidizing gas.
The process of activation in such apparatus it is difficult to carry out under controlled conditions, so as to adjust the composition of the gas phase in the zone activation is almost impossible because of the presence in it along with the oxidizing gas of a wide spectrum of gaseous products of pyrolysis of the source material, which is formed with its carbonation.
This is the result of combining in one device two completely different processes of carbonization and activation.
Adversely affects the quality of the activated carbon fiber material and the absence of the apparatus of the preparation device oxidizing gas, and irrational scheme of heating of the working chamber.
It is also known device is a steam-activated carbon fabric (Copyright witness the creation of the USSR №441032, CL 01 J 1/00, 1972, publ. in BI No. 32, 1974).
This device consists of a furnace in which is placed the camera activation and carbonization, and the drive unit with the feed rollers and receiving bin, and the Luggage made in the form of a truncated prism with holes for the steam supply, and a nozzle for supply and removal of the activating agent are located on two opposite ends of the bases of the prism.
The disadvantage of this device is that the activation of the tissue is carried out only on a narrow strip adjacent at the moment to the nozzle chamber to which steam is fed. It also is difficult to achieve high quality activated tissue due to the lack of devices for additional heating steam.
Closest to the claimed device is kiln for activated coal tissue (Japanese patent application No. 61-29885 class. With 31/10 01, 01 J 20/20, 1983), with which are connected the inlet opening for flow of water vapor. Furnace vertical design has a blind bottom, and the input and output for activated tapes are in the upper part thereof on the same level. Inside the furnace, the hot zone is mounted deflecting roller, and the other nodes of the broaching mechanism outside the working space. The furnace is provided with a device for generating steam, which has a partially submerged in the water element of the material on which the WMD rises evaporated water. In element embedded electric heater.
The disadvantage of this furnace is that it has a blind bottom, and the input and output are in the upper part at the same level. This implies irrational scheme the passage of material into the furnace through the deflecting roller in its lower part. In this arrangement, in case of a break in the furnace material, a significant part of it is lost (burned or goes into marriage). Failure or even a small fault node roller requires a full shutdown and cooling of the furnace for repair, which increases production costs of the material. Refilling material in the cliff in a hot oven difficult.
A device for generating steam is virtually unregulated, as the quantity evaporator water depends on the capillary structure of the immersion element and to ensure the supply of steam to the extent necessary volumes is not possible. To get this device overheated “couples”that are necessary for high-quality activated, it is impossible due to the lack of paranirvana.
This significantly reduces the possibility of obtaining activated carbon materials with high characteristics of the porous structure and strength.
The present invention is the creation of such facility to produce an activated ug is arodnogo fibrous material, which would provide a continuous process carbon material superheated steam with high strength properties and porous structure of the activated tissue, was easy to install, reliable in operation.
Patented device for producing an activated carbon material contains a vertical furnace 1 (Fig 1) for activated carbon fabric (not shown in figure 1) with that of the receiving device 2 and the associated steam generator 3, which is connected to the power source 4 and the control unit 5.
Furnace (figure 2) contains through a heated muffle 6, which is designed for continuous passing through activated carbon fabric 7, the detachable heat-insulating housing 8 located therein heating elements 9 and mobile tank 10 with water, and the muffle 6 is located inside the insulating housing 8.
The steam generator 3 (Fig 1) contains the evaporator 11 and paralarval 12. The evaporator 11 (figure 3) has a body 13 and a lid 14, which is welded steel tube 15. In them are inserted heating elements, which are made, for example, in the form of quartz halogen lamps 16. The evaporator 11 is equipped with a thermocouple 17, the safety valve 18, the pressure sensor 19, 20 gauge and valve 39.
The evaporator 11 (figure 1) is associated with pauropoda what reuteler 12, containing heat insulating frame 21 (figure 4), on the inner surface of which there are heating elements made, for example, in the form of a tubular quartz halogen lamps 22, and between them is mounted a tubular steam line 23, made in the form of a coil.
The muffle 6 (figure 2) consists of the operating part 24, which is connected to the upper cover 25 and the lower compartment 26.
Working part 24 of the muffle 6 may be molded from heat-resistant steel, and the compartments 25 and 26 may be made of stainless steel. The muffle 6 has a cross section, for example, a rectangular shape.
The upper compartment 25 of the muffle 6 is equipped with a shutter 27, made in the form of a cover 28 arranged in parallel with it water cooled tubes 29, the gap between them can be adjusted.
Cover 28 is lowered into the pocket 30, welded to the upper compartment 25 of the muffle 6 and filled, for example, sand.
The housing 8 of the furnace 1 is a welded frame 31, an indoor outside removable panels 32 and lined on the inside with refractory fibrous plates 33 on the inner side of the housing 8 facing the muffle 6, mounted heating elements made, for example, in the form of quartz halogen lamps 9. The height of the furnace 1 halogen lamp 9 is divided into three zones with independent heating.
The casing 8 is made detachable and consists of two symmetrical with respect to the vertical is the real axis of the furnace 1 parts which can be moved apart along the guide rails (not shown in figure 2), for which they provided with rollers 34.
This design of the housing 8 is convenient for installation, repair and maintenance of the furnace 1.
At the bottom of the working part 24 of the muffle 6 on its inner perimeter of the installed steam distribution pipe 35 with holes connected to paramagnetically 12.
Mobile tank 10 with water provided with a guide roller 36, a drain pipe 37 and a valve 38.
The vertical furnace 1, the receiving device 2 and the generator 3 is connected through the control unit 5 to a power source 4. When this is heated quartz halogen lamps 9 of the furnace 1, and the muffle 6. In the evaporator 11 halogen quartz lamp 16 is heated located in the lid 14 of the metal tube 15, which is heated in the housing 13 of the evaporator 11 water. The resulting steam enters the steam line 23 prepodovatela 12. The temperature of the quartz halogen lamps 16 of the evaporator 11 is controlled by a thermocouple 17, the vapor pressure measured by the pressure gauge 20. The safety valve 18 serves for relieving excess pressure of steam, and the pressure sensor 19 is used to control the operating mode of the evaporator 11.
Prepodavatel 12 provides heating steam to the desired temperature due to convection of heat from the steam pipe 23, which, in the howling of all, heated by quartz halogen lamps 22, the Heated vapor then flows through the steam distribution pipe 35 in the muffle 6.
After leaving the furnace 1 and the generator 3 at a given technological regime in the muffle 6 serves activated carbon cloth 7. While it is passed between the tubes 29 in the cover 28 of the shutter 27 of the muffle 6 through the upper compartment 25 into the working portion 24, where actually is the activation of the tissue 7, then through the loop pararosaniline tube 35, the lower compartment 26 fabric 7 served in the tank 10 with water, where it is cooled and through the guide rollers 36 is supplied to the receiving device 2, which provides a set speed pull fabric 7 through the muffle 6.
Because the lower end of the muffle 6 is lowered into the water tank 10, is provided by the tightness of his working area. It also promotes the creation of excessive pressure in the muffle 6 gas mixture consisting of superheated steam and oxidation products of carbon, the excess of which is removed through the gap between the tubes 29 of the upper shutter 27.
The water in the tank 10 is fed continuously and poured into the drain pipe 37, which ensures the constancy of its level in the vessel 10.
It is advisable to produce activated carbon fabric around the clock (preferably up to 30 days), after which the installation can be stopped for a routine inspection is or (if necessary) repair. It is possible to separate and apart from guides on rollers 34 of the chassis 8 to have access to the muffle 6 and halogen lamps 9.
Advantages of installation
Patented installation is simple structure, reliable operation, easy maintenance and repairs.
It is economical because it has adjustable expenditure of electricity depending on the specific temperature-time mode, and the heating of the quartz halogen lamps allows to process with a minimum expenditure of power.
The presence of through the muffle allows continuous rational scheme for the material and design of the evaporator and paranirvana enables the installation of active steam” with the set of thermophysical parameters, which significantly improves the quality and reduces the cost of absorbent material.
The plant is capable of producing activated carbon fibrous material with unique performance characteristics: highly developed porous structure with a given distribution of micro-, meso - and macropores, large specific surface, high strength. This material finds application in devices for water and air purification, anti-human in extreme situations, Henichesk the th, metallurgical industry, energy, medicine and other industries.
1. Device for producing activated carbon fibrous material containing vertical kiln for activated carbon fabric and its associated steam generator, which is connected to the power source and the control unit, and the output of the stove the receiving device, wherein the furnace contains through a heated muffle, designed for continuous passage through it of the processed carbon tissue, and the muffle is located inside the plug insulating housing of the furnace, inside which there are heating elements, in addition, the output of the furnace is equipped with a mobile container with water, that surrounds the lower end through the muffle.
2. Installation according to claim 1, characterized in that the steam generator contains the evaporator and associated paralarval.
3. Installation according to claim 2, wherein the evaporator includes a housing with a set of tubes, each of which is located the heating element.
4. Installation according to claim 2, characterized in that paralarval contains a heat insulating frame, on the inner surface of which there are heating elements, and between them is mounted a tubular manifolds, made in the form of a coil.
5. Set the CAS according to claims 1, 3, 4, characterized in that the heating elements are in the form of a tubular quartz halogen lamps.
6. Installation according to claim 1, characterized in that through the muffle in the upper part is equipped with a shutter.
7. Installation according to claim 5, characterized in that the shutter is made in the form of a cover arranged in parallel with the water-cooled tubes, the gap between which is adjustable.
8. Installation according to claim 1, characterized in that on the inner perimeter of the muffle to the bottom of its working parts installed steam distribution pipe with holes connected to paramagnetically.
The prior art method of applying a silicon carbide coating on the thread in a two-chamber setup at atmospheric pressure