CN217220641U

CN217220641U - Tail gas recovery device is used in recoverable thermal carborundum production

Info

Publication number: CN217220641U
Application number: CN202220174423.5U
Authority: CN
Inventors: 牛学平; 张有武; 叶建强; 张英; 蔡国旗; 师春云
Original assignee: Gansu Hongding Abrasive Technology Co ltd
Current assignee: Gansu Hongding Abrasive Technology Co ltd
Priority date: 2022-01-23
Filing date: 2022-01-23
Publication date: 2022-08-19
Anticipated expiration: 2032-01-23

Abstract

The utility model discloses a tail gas recovery device for silicon carbide production capable of recovering heat, which belongs to the technical field of waste gas recovery device for silicon carbide production, and the technical proposal is characterized in that the tail gas recovery device comprises a heat exchange cavity, a filter cylinder and a slag removing cylinder are sequentially arranged on the right side of the heat exchange cavity from left to right, a water pump is arranged below the filter cylinder, a motor is fixedly connected below the left side of the heat exchange cavity, a tail gas recovery pipe is arranged above the motor, communicating pipes are arranged on the left side and the right side of the inner side wall of the heat exchange cavity, the other ends of the two communicating pipes are communicated with a shunt pipe, the lower ends of the two shunt pipes are communicated with a plurality of evenly distributed connecting ports, a plurality of transversely evenly distributed wave pipes are arranged inside the heat exchange cavity, the shunt pipe conveys hot tail gas to the inside of the plurality of wave pipes, the contact area of the wave pipes and water is increased, cold water heating is facilitated, and tail gas cooling is facilitated, the motor is started, the (mixing) shaft carries out the interval stirring to the water of heat transfer intracavity, does benefit to the water thermally equivalent of heat transfer intracavity, improves heat exchange efficiency.

Description

Tail gas recovery device is used in recoverable thermal carborundum production

Technical Field

The utility model relates to a waste gas recovery device technical field is used in the carborundum production, in particular to recoverable thermal tail gas recovery device is used in carborundum production.

Background

The silicon carbide heating element is a common heating element, and has the advantages of simple and convenient operation, long service life, wide application range and the like, so that the silicon carbide heating element becomes the most durable, cheap and good heating material, the service temperature of the common silicon carbide heating element is 1400 ℃, the service temperature of the specially-made silicon carbide heating element can be increased to 1600-1650 ℃ by adopting the technologies of high-temperature soaking sintering, ceramic surface spraying, special substance adding, cold end soaking treatment in molten silicon and the like, and the service temperature of the specially-made silicon carbide heating element can even be as high as 1800 ℃ in argon atmosphere.

However, in the production process of silicon carbide, a certain amount of waste gas is generated due to incomplete combustion, and the waste gas contains carbon monoxide, which has adverse effects on human health and pollutes the environment.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to above problem, provide a recoverable thermal for carborundum production tail gas recovery unit and solve above-mentioned problem.

The utility model is realized in such a way, the tail gas recovery device for silicon carbide production capable of recovering heat comprises a heat exchange cavity, wherein the right side of the heat exchange cavity is sequentially provided with a filter cylinder and a slag removing cylinder from left to right, a water pump is arranged below the filter cylinder, the output end of the water pump is respectively communicated with the right side of the heat exchange cavity and the left side of the slag removing cylinder through a three-way pipe, a motor is fixedly connected below the left side of the heat exchange cavity, a tail gas recovery pipe is arranged above the motor, communicating pipes are respectively arranged at the left side and the right side of the inner side wall of the heat exchange cavity, the other ends of the two communicating pipes are respectively communicated with a shunt pipe, the lower ends of the two shunt pipes are communicated with a plurality of uniformly distributed connecting ports, a plurality of transversely and uniformly distributed wave pipes are arranged inside the heat exchange cavity, and the left ends and the right ends of the wave pipes are respectively communicated with the connecting ports below the left shunt pipe and the right shunt pipe, the left end of tail gas recovery pipe runs through the heat transfer chamber and communicates with left communicating pipe, and is a plurality of the below of wave pipe is provided with the (mixing) shaft, the left end of (mixing) shaft run through the heat transfer chamber and with the output fixed connection of motor.

In order to cool down the heat transfer intracavity with tail gas smoothly quick, reach the effect to tail gas recycle in order to make things convenient for the utility model discloses a recoverable thermal for silicon carbide production tail gas recovery device is preferred, the lateral wall of tail gas recovery pipe passes through the first draught fan of flange fixedly connected with, the left side below intercommunication of cartridge filter has the connecting pipe, the other end of connecting pipe run through the heat transfer chamber and communicate with right side communicating pipe.

In order to play filterable effect many times to tail gas, be convenient for fall the big impurity filtration that contains in the tail gas, as the utility model discloses a recoverable thermal for carborundum production tail gas recovery unit is preferred, the up end swing joint of cartridge filter has sealed lid, the lower extreme fixedly connected with connecting cylinder of sealed lid, and the lateral wall of connecting cylinder and the inside wall threaded connection of cartridge filter, the inside wall threaded connection of connecting cylinder has a plurality of evenly distributed's filtration plywood.

In order to handle in smoothly carrying the section of thick bamboo that removes slag in the tail gas of cartridge filter internal filtering smoothly, as the utility model discloses a recoverable thermal for silicon carbide production tail gas recovery unit is preferred, the upper end of sealed lid and the left side below intercommunication of the section of thick bamboo that removes slag have the conveyer pipe, the lateral wall of conveyer pipe passes through flange fixedly connected with second draught fan.

In order to reach the effect of safe emission, prevent that the peculiar smell gas from influencing the surrounding environment, conduct the utility model discloses a recoverable thermal tail gas recovery unit is preferred for carborundum production, the upper end swing joint of slagging-off section of thick bamboo has the connection lid, the top swing joint of slagging-off section of thick bamboo inside wall has the active carbon filter layer, the upper end intercommunication of connecting the lid has the blast pipe.

In order to facilitate the temperature of the inside water of real-time detection heat transfer chamber, as the utility model discloses a recoverable thermal tail gas recovery unit is preferred for carborundum production, level sensor is all installed on the upper end in heat transfer chamber and the right side of slagging-off section of thick bamboo, temperature sensor is installed on the right side in heat transfer chamber.

In order to conveniently discharge the inside hot water of heat transfer chamber and the inside filterable sewage of slagging-off section of thick bamboo respectively, as the utility model discloses a recoverable thermal for carborundum production tail gas recovery unit is preferred, the right side below of heat transfer chamber and slagging-off section of thick bamboo communicates respectively has hot water calandria and drain pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

this kind of recoverable thermal tail gas recovery unit is used in carborundum production, start first draught fan, tail gas recovery manages smoothly quick carry tail gas to the heat transfer intracavity, the shunt tubes will be hot tail gas inside a plurality of wavy tubes are carried, increase the area of contact of wavy tubes and water, do benefit to cold water and be heated, and do benefit to tail gas and cool down, starter motor, the (mixing) shaft carries out interval stirring to the water of heat transfer intracavity, do benefit to the water thermally equivalent of heat transfer intracavity, heat exchange efficiency is improved, tail gas carries cartridge filter and slagging-off cylinder inside in proper order after the cooling, the cartridge filter carries out filtration treatment with the dust to the big impurity that contains in the tail gas, the slagging-off cylinder carries out filtration treatment to little impurity and dust that contain in the tail gas, and improve the peculiar smell that contains in the tail gas, make tail gas reach the effect of safe emission, and reduce the pollution to the surrounding environment.

Drawings

FIG. 1 is a sectional view of a tail gas recovery device for producing silicon carbide according to the present invention, which can recover heat;

FIG. 2 is a cross-sectional structural view of the heat exchange chamber of the present invention;

fig. 3 is a left view structural diagram of the shunt tube of the present invention.

In the figure, 1, a heat exchange cavity; 101. a tail gas recovery pipe; 102. a first induced draft fan; 103. a communicating pipe; 104. a liquid level sensor; 105. a temperature sensor; 106. a hot water discharge pipe; 107. a connecting pipe; 2. a shunt tube; 201. a connection port; 3. a wave tube; 4. a motor; 401. a stirring shaft; 5. a filter cartridge; 501. a sealing cover; 502. a connecting cylinder; 503. filtering the laminate; 504. a delivery pipe; 505. a second induced draft fan; 6. a water pump; 7. a deslagging cylinder; 701. a connecting cover; 702. an activated carbon filter layer; 703. an exhaust pipe; 704. and a water discharge pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, an exhaust gas recovery device for silicon carbide production capable of recovering heat comprises a heat exchange chamber 1, a filter cartridge 5 and a slag removing drum 7 are sequentially arranged on the right side of the heat exchange chamber 1 from left to right, a water pump 6 is arranged below the filter cartridge 5, the output end of the water pump 6 is respectively communicated with the right side of the heat exchange chamber 1 and the left side of the slag removing drum 7 through a three-way pipe, a motor 4 is fixedly connected below the left side of the heat exchange chamber 1, an exhaust gas recovery pipe 101 is arranged above the motor 4, communicating pipes 103 are respectively arranged on the left side and the right side of the inner side wall of the heat exchange chamber 1, the other ends of the two communicating pipes 103 are respectively communicated with a shunt pipe 2, the lower ends of the two shunt pipes 2 are communicated with a plurality of uniformly distributed connection ports 201, a plurality of transversely and uniformly distributed wave pipes 3 are arranged inside the heat exchange chamber 1, the left ends and the right ends of the plurality of wave pipes 3 are respectively communicated with the connection ports 201 below the left side and the right side 2, the left end of the tail gas recovery pipe 101 penetrates through the heat exchange cavity 1 and is communicated with the left communicating pipe 103, a stirring shaft 401 is arranged below the plurality of corrugated pipes 3, and the left end of the stirring shaft 401 penetrates through the heat exchange cavity 1 and is fixedly connected with the output end of the motor 4.

In this embodiment: starting a water pump 6, respectively conveying cold water into a heat exchange cavity 1 and a slag removing cylinder 7 through a three-way pipe, wherein the left side and the right side of the inner side wall of the heat exchange cavity 1 are respectively provided with a communicating pipe 103, the two communicating pipes 103 are respectively communicated with two shunt pipes 2, the two shunt pipes 2 are respectively communicated with the two ends of a plurality of wave pipes 3 through connecting ports 201, a tail gas recovery pipe 101 is communicated with the left communicating pipe 103, a first draught fan 102 is started, the tail gas recovery pipe 101 smoothly and quickly conveys tail gas into the heat exchange cavity 1, the shunt pipes 2 convey hot tail gas into the wave pipes 3, the contact area between the wave pipes 3 and water is increased, the cold water heating is facilitated, the tail gas cooling is facilitated, a motor 4 is started, a stirring shaft 401 carries out interval stirring on the water in the heat exchange cavity 1, the water in the heat exchange cavity 1 is facilitated to be uniformly heated, the heat exchange efficiency is improved, the tail gas after cooling is sequentially conveyed into a filter cylinder 5 and a slag removing cylinder 7, the filter cylinder 5 filters large impurities and dust contained in the tail gas, the slag removal cylinder 7 filters small impurities and dust contained in the tail gas, the peculiar smell contained in the tail gas is improved, the tail gas is enabled to achieve the effect of safe emission, and the pollution to the surrounding environment is reduced.

As a technical optimization scheme of the utility model, the lateral wall of exhaust gas recovery pipe 101 passes through the first draught fan 102 of flange fixedly connected with, and the left side below intercommunication of cartridge filter 5 has connecting pipe 107, and the other end of connecting pipe 107 runs through heat transfer chamber 1 and communicates with right side communicating pipe 103.

In this embodiment: start first draught fan 102, the convenient smooth and easy quick transport of tail gas is cooled down in heat transfer chamber 1, reaches the effect to tail gas recycle, through connecting pipe 107, is convenient for carry the tail gas of cooling treatment and carries out filtration treatment in cartridge filter 5.

As a technical optimization scheme of the utility model, the up end swing joint of cartridge filter 5 has sealed lid 501, the lower extreme fixedly connected with connecting cylinder 502 of sealed lid 501, and the lateral wall of connecting cylinder 502 and the inside wall threaded connection of cartridge filter 5, and the inside wall threaded connection of connecting cylinder 502 has a plurality of evenly distributed's filtration plywood 503.

In this embodiment: through a plurality of filtration laminas 503 of inside wall installation at connecting cylinder 502, a plurality of filtration laminas 503 play filterable effect many times to tail gas, are convenient for fall the big impurity filtration that contains in the tail gas.

As a technical optimization scheme of the utility model, the upper end of sealed lid 501 and the left side below intercommunication of slagging-off section of thick bamboo 7 have conveyer pipe 504, and the lateral wall of conveyer pipe 504 passes through flange fixedly connected with second draught fan 505.

In this embodiment: the second induced draft fan 505 is started, and the conveying pipe 504 is convenient for smoothly conveying the tail gas filtered in the filter cartridge 5 into the slag removal cylinder 7 for treatment.

As a technical optimization scheme of the utility model, the upper end swing joint of a slagging-off section of thick bamboo 7 has connection lid 701, and the top swing joint of a slagging-off section of thick bamboo 7 inside wall has active carbon filter layer 702, and the upper end intercommunication of connecting lid 701 has blast pipe 703.

In this embodiment: the filtered tail gas is filtered by the activated carbon filter layer 702 and is discharged from the exhaust pipe 703, so that the effect of safe discharge is achieved, and the influence of the peculiar smell gas on the surrounding environment is prevented.

As a technical optimization scheme of the utility model, level sensor 104 is all installed on the upper end of heat transfer chamber 1 and the right side of slagging-off section of thick bamboo 7, and temperature sensor 105 is installed on the right side of heat transfer chamber 1.

In this embodiment: the liquid level sensor 104 is convenient for detecting the water level height inside the heat exchange cavity 1 and the deslagging cylinder 7, and the temperature sensor 105 is convenient for detecting the temperature of water inside the heat exchange cavity 1 in real time.

As a technical optimization scheme of the utility model, the right lower sides of the heat exchange cavity 1 and the deslagging cylinder 7 are respectively communicated with a hot water calandria 106 and a drain pipe 704.

In this embodiment: by installing the hot water discharge pipe 106 and the water discharge pipe 704, the hot water discharge pipe 106 and the water discharge pipe 704 are further used to facilitate the discharge of the hot water inside the heat exchange chamber 1 and the filtered sewage inside the slag removing cylinder 7, respectively.

The utility model discloses a theory of operation and use flow: firstly, start water pump 6, the three-way pipe carries cold water respectively to heat transfer chamber 1 and slagging-off section of thick bamboo 7 in, start first draught fan 102, tail gas recovery pipe 101 carries tail gas in heat transfer chamber 1, shunt tubes 2 carry hot tail gas inside a plurality of wavy tubes 3, increase the area of contact of wavy tubes 3 and water, do benefit to and carry out the heat exchange, starting motor 4, the (mixing) shaft 401 stirs the water in heat transfer chamber 1 at intervals, do benefit to the water thermally equivalent in heat transfer chamber 1, tail gas carries inside cartridge filter 5 through connecting pipe 107 after the cooling, a plurality of filter laminates 503 carry out a lot of filtration to tail gas, detach the big impurity and the dust that contain in the tail gas, start second draught fan 505, conveyer pipe 504 smoothly carries the tail gas that filters inside cartridge filter 5 to slagging-off section of thick bamboo 7 in, the water below the cartridge filter 7 does benefit to small impurity and the dust in the tail gas of filtration, activated carbon filter layer 702 does benefit to improving the odorous gas in the tail gas.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a recoverable thermal tail gas recovery unit for carborundum production, includes heat transfer chamber (1), its characterized in that: the right side of heat transfer chamber (1) has set gradually cartridge filter (5) and slagging-off section of thick bamboo (7) from a left side to the right side, the below of cartridge filter (5) is provided with water pump (6), the output of water pump (6) passes through the three-way pipe respectively with the right side of heat transfer chamber (1) and the left side intercommunication of slagging-off section of thick bamboo (7), heat transfer chamber (1) left below fixedly connected with motor (4), the top of motor (4) is provided with tail gas recovery pipe (101), communicating pipe (103), two are all installed to the left and right sides of heat transfer chamber (1) inside wall the other end of communicating pipe (103) all communicates shunt tubes (2), two the lower extreme intercommunication of shunt tubes (2) has a plurality of evenly distributed's connection port (201), the inside of heat transfer chamber (1) is provided with a plurality of horizontal evenly distributed's wave pipe (3), and a plurality of the left and right sides both ends of wave pipe (3) respectively with control connection port (201) below shunt tubes (2) ) The left end of tail gas recovery pipe (101) runs through heat transfer chamber (1) and communicates with left communicating pipe (103), and is a plurality of the below of wavy pipe (3) is provided with (mixing) shaft (401), the left end of (mixing) shaft (401) run through heat transfer chamber (1) and with the output fixed connection of motor (4).

2. The apparatus for recovering tail gas from silicon carbide production according to claim 1, wherein: the outer side wall of the tail gas recovery pipe (101) is connected with a first induced draft fan (102) through a flange, a connecting pipe (107) is communicated with the left lower side of the filter cartridge (5), and the other end of the connecting pipe (107) penetrates through the heat exchange cavity (1) and is communicated with a right communicating pipe (103).

3. The apparatus for recovering tail gas from silicon carbide production according to claim 1, wherein: the upper end face of the filter cartridge (5) is movably connected with a sealing cover (501), the lower end of the sealing cover (501) is fixedly connected with a connecting cylinder (502), the outer side wall of the connecting cylinder (502) is in threaded connection with the inner side wall of the filter cartridge (5), and the inner side wall of the connecting cylinder (502) is in threaded connection with a plurality of uniformly distributed filter laminate plates (503).

4. The apparatus for recovering tail gas from silicon carbide production according to claim 3, wherein: the upper end of sealed lid (501) and the left side below intercommunication of slagging-off section of thick bamboo (7) have conveyer pipe (504), the lateral wall of conveyer pipe (504) passes through flange fixedly connected with second draught fan (505).

5. The apparatus for recovering tail gas from silicon carbide production according to claim 1, wherein the apparatus comprises: the upper end of the deslagging cylinder (7) is movably connected with a connecting cover (701), an active carbon filter layer (702) is movably connected above the inner side wall of the deslagging cylinder (7), and the upper end of the connecting cover (701) is communicated with an exhaust pipe (703).

6. The apparatus for recovering tail gas from silicon carbide production according to claim 1, wherein: liquid level sensor (104) are all installed on the upper end of heat transfer chamber (1) and the right side of slagging-off section of thick bamboo (7), temperature sensor (105) are installed on the right side of heat transfer chamber (1).

7. The apparatus for recovering tail gas from silicon carbide production according to claim 1, wherein: the right lower parts of the heat exchange cavity (1) and the deslagging cylinder (7) are respectively communicated with a hot water discharge pipe (106) and a drain pipe (704).