Dust collection and recovery system at electrode paste burdening position

Abstract

The utility model relates to the technical field of electrode paste production, and discloses a dust collection and recovery system for an electrode paste burdening position. By arranging the dust suction device, dust at the electrode paste burdening position can be quickly sucked into the spraying box, the dust spraying device is matched with the spraying device, the dust spraying device sprays powder into an inner cavity of the spraying box, and the spraying device sprays liquid water mist; and after the water is in contact with the dust, the dust can fall into the top of the conveyor and is conveyed to the outer side of the spraying box by the conveyor to be collected. By arranging the first driving assembly, the ash spraying cover can stably move in the spraying box, so that in the ash spraying process, powder can be more uniformly sprayed to all positions of the spraying box, and dust adsorption is conveniently and efficiently completed. And an extrusion cylinder is further arranged to extrude pressed powder on the top of the conveyor, so that most of water in the pressed powder is removed, and the pressed powder can be conveniently and rapidly dried and reused in the follow-up process.

Description

Technical Field

[0001] The present application relates to the technical field of electrode paste production, and in particular to a dust collection and recovery system at an electrode paste batching site. Background Art

[0002] Electrode paste is a conductive material used in ferroalloy furnaces, calcium carbide furnaces and other electric furnace equipment, also known as self-baking electrodes. Electrode paste, also known as self-baking electrodes, relies on the heat in the ore-fired furnace to complete the baking process. Therefore, the key to the use of electrode paste is to match the electrode consumption rate with the baking rate. Electrode paste can withstand high temperatures and has a small thermal expansion coefficient. It has a relatively small resistivity, can reduce the loss of electrical energy, and has a wide range of uses.

[0003] During the production process of electrode paste, ingredients need to be batched. The powder produced by batching is prone to generate dust during the feeding process, which will pollute the production environment and also cause the loss of some raw materials. The dust collection and recovery equipment for this dust in the existing technology has problems such as low dust collection efficiency and difficulty in recovery. Utility Model Content

[0004] In view of the above problems, an embodiment of the present application provides a dust collection and recovery system for an electrode paste batching area, which can improve the dust collection efficiency and make the recovery process simpler and more efficient.

[0005] According to one aspect of an embodiment of the present application, a dust collection and recovery system for an electrode paste batching site is provided. The dust collection and recovery system for an electrode paste batching site comprises a spray box, a dust suction device and a sedimentation tank arranged at the bottom of the spray box, the dust suction device comprises a fan, the air inlet of the fan is connected to a dust collection hood via a pipeline, the air outlet of the fan is connected to an ash spraying device via a hose, the ash spraying device is arranged in the inner cavity of the spray box, the ash spraying device comprises an ash spraying hood connected to the hose, the ash spraying hood is connected to a first drive assembly for driving the ash spraying hood to move in a horizontal direction in the spray box, and the ash spraying hood is connected to a first drive assembly for driving the ash spraying hood to move in a horizontal direction in the spray box. A spray device is arranged below the ash spraying device, and the spray device includes a spray pipe, one end of the spray pipe penetrates and extends to the outer side of the spray box and is connected with a water supply pipe, and a plurality of spray ports are arranged on the spray pipe. An opening is arranged below the spray box, and a conveyor is arranged horizontally at the opening. An extrusion cylinder is rotatably arranged at the top of the output end of the conveyor, and a material receiving device is arranged at the output end of the conveyor, and a perforated plate is arranged at the bottom of the conveyor, and the sedimentation tank is located below the perforated plate.

[0006] In some embodiments, a scraper cylinder is connected to the outer sleeve of the spray pipe, and the two ends of the scraper cylinder are respectively contracted inward to form an annular scraper, and the annular scraper abuts against the outer wall of the spray pipe. The scraper cylinder is connected to a second drive component for driving the scraper cylinder to move axially along the spray pipe.

[0007] In some embodiments, the second drive assembly includes a capstan disposed at opposite ends of the spray box, the capstan is coaxially connected to a drive motor, a traction line is wound around the capstan, one end of the traction line passes through the interior of the spray box and is connected to the scraper.

[0008] In some embodiments, the first driving assembly includes a threaded rod and a limit rod arranged in parallel, one end of the threaded rod is transmission-connected to a rotating motor, a fixing block is threaded on the threaded rod, the fixing block is outer-mounted on the limit rod, and the dust spraying hood is fixed on the fixing block.

[0009] In some embodiments, an ash delivery pipe is provided on the top of the fixed block, and the bottom end of the ash delivery pipe is connected to the ash spraying hood. A through groove is opened on the top of the spray box along the axial direction of the threaded rod. The ash delivery pipe extends along the through groove to the outside of the spray box and is connected to the hose. A limiting ring is provided on the outer periphery of the ash delivery pipe, and the limiting ring is abutted and supported above the through groove.

[0010] In some embodiments, there are multiple spray devices, and the multiple spray devices are arranged at equal intervals in the spray box and on the same horizontal plane.

[0011] The beneficial effects of the present application are as follows: in the present application, by setting a dust suction device, the dust at the electrode paste ingredients can be quickly absorbed into the spray box, and by setting an ash spraying device and a spraying device in coordination, the ash spraying device sprays the powder into the inner cavity of the spray box, and the spraying device sprays liquid water mist. After the water contacts the dust, the dust can fall into the top of the conveyor and be transported to the outside of the spray box by the conveyor for storage. By setting a first drive assembly, the ash spraying hood can be stably moved in the spray box, so that during the ash spraying process, the powder can be more evenly sprayed to various parts of the spray box, thereby conveniently and efficiently completing the adsorption of dust. The present application also provides an extrusion cylinder to squeeze the "powder cake" on the top of the conveyor, thereby removing most of the water in the powder cake, which is convenient for the powder cake to be quickly dried and reused later. The squeezed water will flow into the sedimentation tank for precipitation. The precipitated raw materials can be purified and reused by other existing technologies, and no waste of raw materials will be caused.

[0012] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0014] Figure 1 A schematic diagram of the overall cross-sectional structure of a dust collection and recovery system for electrode paste batching provided in an embodiment of the present application;

[0015] Figure 2 A schematic diagram of the local structure of the spray box provided in the embodiment of the present application;

[0016] Figure 3 A schematic diagram of the local structure of the spray pipe provided in an embodiment of the present application.

[0017] The reference numerals in the specific implementation manner are as follows:

[0018] The electrode paste batching dust collection and recovery system 100, the spray box 110, the through groove 111, the limit ring 112, the dust suction device 120, the fan 121, the dust collection cover 122, the hose 123, the sedimentation tank 130, the ash spraying device 140, the ash spraying cover 141, the first drive assembly 142, the threaded rod 142a, the limit rod 142b, the rotating motor 142c, the fixed block 142d, the ash delivery pipe 142e, the spray device 150, the spray pipe 151, the spray port 152, the scraper 153, the scraper 154, the second drive assembly 155, the winding drum 155a, the drive motor 155b, the traction line 155c, the conveyor 160, the extrusion cylinder 161, the orifice plate 162, and the material receiving device 170. DETAILED DESCRIPTION

[0019] The following will describe in detail the embodiments of the technical solution of the present application in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only used as examples and cannot be used to limit the scope of protection of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned description of the drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0020] Specifically, please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the overall cross-sectional structure of the dust collection and recovery system for the electrode paste batching provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the local structure of the spray box provided in the embodiment of the present application. Figure 3A schematic diagram of the local structure of the spray pipe provided in the embodiment of the present application. The dust collection and recovery system 100 at the electrode paste batching site includes a spray box 110, a dust suction device 120, and a sedimentation tank 130 arranged at the bottom of the spray box 110. During operation, the dust suction device 120 is fixed at the batching outlet, and the dust at the batching site is sucked into the spray box 110 by the dust suction device 120. After the dust is adsorbed in the spray box 110, most of the raw materials will be sent to the receiving device 170 from the end of the conveyor 160, and a small amount of raw materials mixed with liquid water will fall into the sedimentation tank 130 for subsequent collection. The dust collecting device 120 includes a fan 121, the air inlet of the fan 121 is connected to a dust collecting hood 122 through a pipeline, and the air outlet of the fan 121 is connected to an ash spraying device 140 through a hose 123. The ash spraying device 140 is arranged in the inner cavity of the spray box 110. During the operation of the fan 121, dust is sucked into the ash spraying device 140 through the dust collecting hood 122, and sprayed into the inner cavity of the spray box 110 through the ash spraying device 140. The ash spraying device 140 includes an ash spraying hood 141 connected to the hose 123, and a first driving component 142 for driving the ash spraying hood 141 to move horizontally in the spray box 110 is connected to the ash spraying hood 141. The first component drives the ash spraying hood 141 to move in the spray box 110, so that the dust can be evenly sprayed to various places of the spray box 110 through the ash spraying hood 141, so as to conveniently and efficiently complete the adsorption of dust. A spray device 150 is provided in the spray box 110 below the ash spraying device 140. The spray device 150 includes a spray pipe 151. One end of the spray pipe 151 passes through and extends to the outer side of the spray box 110 and is connected to a water supply pipe (the water supply pipe is not shown in the figure). An external water source is replenished to the spray pipe 151 through the water supply pipe. A plurality of spray ports 152 are provided on the spray pipe 151. After liquid water is sprayed out from the spray ports 152, it contacts with dust in the air, thereby completing the adsorption of the dust. After contacting with water, the dust will fall downward onto the conveyor 160 to form a powder cake. An opening is provided at the bottom of the spray box 110, and a conveyor 160 is horizontally provided at the opening. An extrusion cylinder 161 is rotatably provided at the top of the output end of the conveyor 160. The conveyor 160 is used to transport the dust that absorbs moisture to the outer end of the spray box 110. There is a certain gap between the extrusion cylinder 161 and the extruder. By squeezing the powder cake on the top of the conveyor 160, excess moisture in the powder cake is squeezed out and flows into the sedimentation tank 130 along both sides of the conveyor 160. A material receiving device 170 is provided at the output end of the conveyor 160. The material receiving device 170 can be a conveying equipment or a material receiving trolley, etc. After the powder cake is transported to the drying room by the material receiving device 170, it is dried and ground and re-formed into powder for easy recycling.A perforated plate 162 is provided at the bottom of the conveyor 160, and the sedimentation tank 130 is located below the perforated plate 162. The mixed liquid squeezed out by the extrusion cylinder 161 contains part of the raw materials, which will fall into the sedimentation tank 130. After sedimentation, the raw materials in the sedimentation tank 130 can be re-extracted through corresponding operations.

[0021] As can be seen from the above, in the embodiment of the present application, by setting the dust suction device 120, the dust at the electrode paste batching can be quickly absorbed into the spray box 110, and by setting the ash spraying device 140 and the spraying device 150 to cooperate, the ash spraying device 140 sprays the powder into the inner cavity of the spray box 110, and the spraying device 150 sprays liquid water mist. After the water contacts the dust, the dust can fall into the top of the conveyor 160 and be transported to the outside of the spray box 110 by the conveyor 160 for storage. By setting the first drive assembly 142, the ash spraying cover 141 can be stably moved in the spray box 110, so that during the ash spraying process, the powder can be more evenly sprayed to various places in the spray box 110, thereby conveniently and efficiently completing the adsorption of dust. The present application also provides an extrusion cylinder 161 to squeeze the "powder cake" on the top of the conveyor 160, thereby removing most of the moisture in the powder cake, which is convenient for the subsequent rapid drying and reuse of the powder cake. The squeezed water will flow into the sedimentation tank 130 for precipitation. The precipitated raw materials can be purified and reused through other existing technologies, without causing waste of raw materials.

[0022] In some embodiments, a scraper 153 is connected to the spray pipe 151, and the two ends of the scraper 153 are respectively contracted inward to form an annular scraper 154, and the annular scraper 154 abuts against the outer wall of the spray pipe 151. The scraper 153 is connected to a second drive assembly 155 for driving the scraper 153 to move along the axial direction of the spray pipe 151. In the embodiment of the present application, since water is sprayed out from the spray pipe 151 for a long time, and the outer wall of the spray pipe 151 will be in a wet state, the dust sprayed from the ash spraying cover 141 is easy to adhere to the spray pipe 151. Therefore, the present application uses the above-mentioned setting to drive the scraper 153 to move back and forth on the spray pipe 151 by using the second drive assembly 155. During the movement, the annular scraper 154 can hang the dust attached to the spray pipe 151 and make it fall onto the conveyor 160.

[0023] In some embodiments, the second driving assembly 155 includes a capstan 155a disposed at opposite ends of the spray box 110, the capstan 155a is coaxially connected to a driving motor 155b, a traction line 155c is wound around the capstan 155a, and one end of the traction line 155c penetrates the interior of the spray box 110 and is connected to the scraper 153. The embodiment of the present application provides a specific arrangement of the second driving assembly 155, during operation, the driving motors 155b at both ends of the spray pipe 151 work alternately, and the driving motor 155b drives the capstan 155a to rotate, so that the capstan 155a pulls the traction line 155c to be wound thereon, and then the traction line 155c drives the scraper 153 to move.

[0024] In some embodiments, the first driving assembly 142 includes a threaded rod 142a and a limit rod 142b arranged in parallel, one end of the threaded rod 142a is connected to a rotating motor 142c, a fixing block 142d is screwed on the threaded rod 142a, the outer cover of the fixing block 142d is connected to the limit rod 142b, and the ash spraying cover 141 is fixed on the fixing block 142d. The embodiment of the present application provides a specific setting method of the first driving assembly 142. During operation, after the rotating motor 142c drives the threaded rod 142a to rotate, the fixing block 142d realizes horizontal movement under the dual action of the limit rod 142b and the threaded rod 142a, thereby driving the ash spraying cover 141.

[0025] In some embodiments, a ash delivery pipe 142e is provided on the top of the fixed block 142d, and the bottom end of the ash delivery pipe 142e is connected to the ash spraying cover 141. A through slot 111 is provided on the top of the spray box 110 along the axial direction of the threaded rod 142a. The ash delivery pipe 142e extends to the outside of the spray box 110 along the through slot 111 and is connected to the hose 123. A limiting ring 112 is sleeved on the outer periphery of the ash delivery pipe 142e, and the limiting ring 112 is supported on the top of the through slot 111. In the embodiment of the present application, the above arrangement avoids the problem that the hose 123 is entangled on the threaded rod 142a after entering the spray box 110. At the same time, by providing the limiting ring 112, when the fixed block 142d is driven by the first driving assembly 142, the limiting ring 112 will move synchronously above the through slot 111, which has a further limiting effect on the fixed block 142d, making its operation more stable.

[0026] In some embodiments, there are multiple spray devices 150, and the multiple spray devices 150 are arranged at equal intervals and on the same horizontal plane in the spray box 110. In the embodiment of the present application, by providing multiple spray devices 150, the spray speed is further increased, making the dust adsorption process faster.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A dust collection and recovery system for electrode paste batching, characterized in that: It includes a spray box, a dust collecting device and a sedimentation tank arranged at the bottom of the spray box; The dust collecting device comprises a fan, an air inlet of the fan is connected to a dust collecting hood via a pipeline, an air outlet of the fan is connected to an ash spraying device via a hose, the ash spraying device is arranged in the inner cavity of the spray box, the ash spraying device comprises an ash spraying hood connected to the hose, and the ash spraying hood is connected to a first driving component for driving the ash spraying hood to move in the horizontal direction in the spray box; A spray device is provided in the spray box below the ash spray device, the spray device comprises a spray pipe, one end of the spray pipe penetrates and extends to the outer side of the spray box and is connected to a water supply pipe, and a plurality of spray ports are provided on the spray pipe; An opening is arranged below the spray box, a conveyor is arranged horizontally at the opening, an extrusion cylinder is rotatably arranged on the top of the output end of the conveyor, a material receiving device is arranged at the output end of the conveyor, a perforated plate is arranged at the bottom of the conveyor, and the sedimentation tank is located below the perforated plate.

2. The dust collection and recovery system for electrode paste batching according to claim 1, characterized in that: A scraper is connected to the spray pipe outer sleeve, and the two ends of the scraper are respectively contracted inward to form an annular scraper, which abuts against the outer wall of the spray pipe. The scraper is connected to a second driving component for driving the scraper to move axially along the spray pipe.

3. The dust collection and recovery system for electrode paste batching according to claim 2, characterized in that: The second driving assembly includes a capstan drum disposed at two opposite ends of the spray box, the capstan drum is coaxially connected to a driving motor, a traction line is wound around the capstan drum, one end of the traction line passes through the interior of the spray box and is connected to the scraper.

4. The dust collection and recovery system for electrode paste batching according to claim 1, characterized in that: The first driving assembly includes a threaded rod and a limiting rod arranged in parallel, one end of the threaded rod is transmission-connected to a rotating motor, a fixing block is screwed on the threaded rod, the fixing block is outer-mounted on the limiting rod, and the dust spraying cover is fixed on the fixing block.

5. The dust collection and recovery system for electrode paste batching according to claim 4, characterized in that: An ash delivery pipe is arranged on the top of the fixed block, and the bottom end of the ash delivery pipe is connected to the ash spraying hood. A through groove is opened on the top of the spray box along the axial direction of the threaded rod. The ash delivery pipe extends along the through groove to the outside of the spray box and is connected to the hose. A limiting ring is provided on the outer periphery of the ash delivery pipe, and the limiting ring is abutted and supported above the through groove.

6. The dust collection and recovery system for electrode paste batching according to claim 1, characterized in that: There are multiple spray devices, and the multiple spray devices are arranged in the spray box at equal intervals and on the same horizontal plane.

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