Extruder exhaust gas collecting and processing device for producing cable

Abstract

The application relates to the field of waste gas treatment, in particular to a waste gas collecting and treating device for an extruding machine for producing cables, which comprises a shell provided with a gas supply unit at the bottom; filter cotton is arranged at the upper part of the gas supply unit and can separate the shell into an upper cavity and a lower cavity; the upper cavity and the lower cavity are arranged from top to bottom along the vertical direction of the shell; a liquid medicine is injected into the lower cavity, the liquid surface of the liquid medicine is coplanar with the upper end surface of the filter cotton, the output end of the gas supply unit extends into the lower cavity, a filter bin is arranged at the upper part of the upper cavity, a bubble generator which is communicated with the upper cavity is arranged in the filter bin, the filter bin contains the liquid medicine which can immerse the bubble generator, the waste gas enters the lower cavity through the gas supply unit and then enters the upper cavity through the filter cotton, and the filtered waste gas is injected into the liquid medicine in the filter bin by the bubble generator. The service life of the bubble generator is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of waste gas treatment, in particular to a waste gas collecting and treating device for extruding machine in cable production. BACKGROUND

[0002] The extruding machine produces waste gas in the process of producing cable, the waste gas is organic waste gas, including dust particles and non-methane total hydrocarbons, etc., in the prior art, the above waste gas is treated by using super oxygen nano micro bubble technology (MBS), but now the waste gas needs to be atomized and moistened in advance before being treated by MBS technology, then the super oxygen nano micro bubble mixing purification is carried out, such operation mode needs to feed the waste gas by selecting flow, so as to combine with the atomized water effectively, but the airflow after combination still has large cyclone kinetic energy, which is easy to make the nano bubble break in advance after meeting the super oxygen nano micro bubble, a large number of nano bubbles are consumed before entering the mixing process, which greatly reduces the uniformity of the mixing of nano bubbles and waste gas, and the waste gas treatment effect is difficult to achieve idealization.

[0003] The organic waste gas treatment device for ensuring sufficient mixing of nano micro bubbles and gas disclosed in Chinese patent CN112675677B includes a treatment tank, a washing tower, a wind guide pipe, a centrifugal fan, a communication pipe, an exhaust pipe, an encapsulation box, a waste gas inlet pipe, a mixing fan, a dehydrator, an exhaust pipe and a backflow pipe, the top end of the washing tower is connected with the wind guide pipe, the bottom end of the wind guide pipe is provided with the encapsulation box, the top end of the encapsulation box is provided with the communication pipe, the side of the encapsulation box is provided with the exhaust pipe, the bottom end of the exhaust pipe is installed with the centrifugal fan, the communication pipe is connected with the centrifugal fan, the inside of the encapsulation box is installed with the treatment tank, the bottom of the treatment tank is installed with a pretreatment mechanism for mixing water with the waste gas, the center position of the pretreatment mechanism is connected with the waste gas inlet pipe, the waste gas inlet pipe is connected with the wind guide pipe, the top end of the treatment tank is fixedly installed with the mixing fan, the exhaust end of the mixing fan is connected with the dehydrator, the drainage end of the dehydrator is connected with the backflow pipe, the backflow pipe is connected with the pretreatment mechanism, the exhaust end of the dehydrator is connected with the exhaust pipe, the exhaust pipe is connected with the communication pipe, the outside of the treatment tank is installed with a micro bubble mechanism for spraying nano bubbles in multiple directions, and the micro bubble mechanism is connected with the pretreatment mechanism and the treatment tank respectively.

[0004] The above scheme can improve the uniformity of the mixing of waste gas and nano micro bubbles, but in the process of treating the waste gas, the waste gas with particles needs to be introduced into the tank and form micro bubbles, the particles in the waste gas can block the corresponding bubble generator, so that the bubble generator needs to be replaced frequently, and since the particles in the waste gas are treated last, the equipment is inevitably filled with particles, which is easy to cause rapid damage to the equipment. SUMMARY

[0005] To address the aforementioned problems, a waste gas collection and treatment device for extruders used in cable production is provided. Waste gas is first injected into the lower chamber via an air supply unit. Since the lower chamber is filled with a chemical solution, the injected air rises to the upper part of the lower chamber and comes into contact with the filter cotton. Because the filter cotton is permeable, even when it is wet, the waste gas injected into the lower chamber can pass through it. Thus, while the gaseous portion of the waste gas can pass through the filter cotton, the particulate matter cannot. Therefore, the gaseous portion of the waste gas passes through the filter cotton and enters the upper chamber, while the particulate matter... Particulate matter is intercepted by the filter cotton, which is located at the bottom of the filter cotton. The gaseous portion of the exhaust gas that passes through the filter cotton enters the upper chamber and is then drawn in by the bubble generator. The gaseous portion of the exhaust gas is then injected into the liquid medicine in the filter chamber. Because the bubble generator can produce nano-microbubbles, the contact area between the bubbled exhaust gas and the liquid medicine is greatly increased, thereby improving the contact effect. At the same time, since the exhaust gas drawn in by the bubble generator has already been filtered by the filter cotton, it does not contain particulate matter. This avoids the situation where particulate matter clogs the bubble generator, thus extending the service life of the bubble generator.

[0006] To address the problems of the prior art, the present invention provides a waste gas collection and treatment device for extruders used in cable production, comprising a housing with an air supply unit at the bottom;

[0007] A filter cotton is installed at the top of the air supply unit to divide the outer shell into an upper chamber and a lower chamber. The upper and lower chambers are arranged vertically from top to bottom along the outer shell. The lower chamber is filled with a medicinal liquid, and the liquid level is coplanar with the upper end face of the filter cotton. The output end of the air supply unit extends into the lower chamber. A filter chamber is installed at the top of the upper chamber. A bubble generator connected to the upper chamber is installed in the filter chamber. The filter chamber contains a medicinal liquid that can immerse the bubble generator. The exhaust gas enters the lower chamber through the air supply unit and then passes through the filter cotton into the upper chamber. The bubble generator injects the filtered exhaust gas into the medicinal liquid in the filter chamber.

[0008] Preferably, a rinsing unit is provided in the upper cavity. The rinsing unit includes a rinsing disc that is rotatably arranged along the axis of the outer shell. A first through-hole is vertically opened on the rinsing disc. The rinsing port of the rinsing disc faces vertically downward. The rinsing port generates water flow from top to bottom in the vertical direction. The water flow passes through the filter cotton from top to bottom. The first through-hole and the rinsing port are arranged alternately around the axis of the outer shell.

[0009] Preferably, a receiving unit is provided at the bottom of the filter cotton. The receiving unit includes a receiving plate rotatably disposed at the lower part of the filter cotton along the axis of the outer shell. A second passage is opened on the receiving plate in the vertical direction. A receiving groove is also opened on the upper part of the receiving plate. The receiving groove and the second passage are arranged alternately. The receiving plate rotates synchronously with the rinsing plate, and the projections of the second passage and the first passage in the vertical direction always coincide.

[0010] Preferably, the arc-shaped structure of the receiving groove is provided with rollers on both sides of the upper opening of the receiving groove, the rollers roll with the bottom of the filter cotton when the receiving disc rotates, the rollers have extrusion force on the bottom of the filter cotton, and the rollers, the receiving groove and the filter cotton jointly form a receiving cavity.

[0011] Preferably, a support frame is fixedly arranged in the filter cotton and fixedly connected with the inner wall of the shell.

[0012] Preferably, the upper opening of the receiving groove is larger than the lower opening of the receiving groove, and a vertical extension pipe in communication with the receiving groove is arranged at the lower opening of the receiving groove, and the particulate matter received by the receiving groove is discharged through the extension pipe.

[0013] Preferably, a collecting unit for collecting the mixture of the particulate matter and the liquid medicine is arranged at the lower part of the extension pipe, the collecting unit comprises a collecting shell, a filter screen is arranged in the collecting shell, the filter screen has an annular structure, the filter screen is arranged in the collecting shell around the axis of the extension pipe, filter holes are uniformly arranged on the filter screen, the filter screen divides the collecting shell into an inner cavity and an outer cavity, the inner cavity has a cylindrical structure, the outer cavity has an annular structure, and the particulate matter is located in the inner cavity.

[0014] Preferably, a circulating unit is arranged on the collecting shell, the circulating unit comprises a circulating pipe, one end of the circulating pipe is in communication with the outer cavity, the other end of the circulating pipe is in communication with the upper cavity, and a second water pump capable of pumping the liquid medicine in the collecting shell to above the filter cotton is arranged on the circulating pipe.

[0015] Preferably, a driving unit for driving the washing disc to rotate is arranged at the upper part of the washing disc, the driving unit comprises a gear ring rotating synchronously with the washing disc, the gear ring is located above the washing disc, a gear is arranged on one side of the gear ring and rotates, the gear ring and the gear are in meshing connection, and a rotary driver is arranged at the upper part of the gear, the rotary driver is used for driving the gear to rotate.

[0016] Preferably, the gas supply unit comprises a gas supply chamber arranged outside the extension pipe and a plurality of extension pipes arranged in the gas supply chamber, the extension pipes penetrate through the gas supply chamber, and the plurality of extension pipes are uniformly arranged at the upper part of the gas supply chamber around the axis of the shell, the extension pipes form a rotary body array structure, the upper part of the rotary body array structure is an air outlet end face of the extension pipe, the lower part of the rotary body array structure is an air inlet end face of the extension pipe, and the area of the air outlet end face is greater than that of the air inlet end face.

[0017] The beneficial effects of the present application compared with the prior art are:

[0018] 1. In this invention, the air supply unit first injects waste gas into the lower chamber. Since the lower chamber is filled with liquid medicine, the air injected into it rises to the upper part of the lower chamber and comes into contact with the filter cotton. Because the filter cotton is permeable, even if it is wet, the waste gas injected into the lower chamber can still pass through it. Thus, while the gaseous portion of the waste gas can pass through the filter cotton, the particulate matter cannot. The gaseous portion then passes through the filter cotton and enters the upper chamber, while the particulate matter is intercepted by the filter cotton. The material is located at the bottom of the filter cotton. The gaseous portion of the exhaust gas passing through the filter cotton enters the upper chamber and is then drawn in by the bubble generator. This gaseous portion of the exhaust gas is then injected into the liquid medicine in the filter chamber. Because the bubble generator can produce nano-microbubbles, the contact area between the aerated exhaust gas and the liquid medicine is greatly increased, thereby improving the contact effect. At the same time, since the exhaust gas drawn in by the bubble generator has already been filtered through the filter cotton, it does not contain particulate matter. This avoids the situation where particulate matter clogs the bubble generator, thus extending the service life of the bubble generator.

[0019] 2. A rinsing unit and a receiving unit are respectively installed at the top and bottom of the filter cotton, so that the filter cotton can perform self-cleaning while filtering particulate matter in the exhaust gas, ensuring that particulate matter can be collected properly and reducing the maintenance rate of the filter cotton. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a waste gas collection and treatment device for an extruder used in the production of cables.

[0021] Figure 2 This is a side view of a waste gas collection and treatment device for an extruder used in the production of cables.

[0022] Figure 3 It is a waste gas collection and treatment equipment for extruders used in the production of cables. Figure 2 Schematic diagram of cross-section at point AA.

[0023] Figure 4 A cross-sectional three-dimensional diagram of a waste gas collection and treatment device for extruders used in cable production. Figure 1 .

[0024] Figure 5 It is a waste gas collection and treatment equipment for extruders used in the production of cables. Figure 4 A magnified view of a portion of point B in the middle.

[0025] Figure 6 A cross-sectional three-dimensional diagram of a waste gas collection and treatment device for extruders used in cable production. Figure 2 .

[0026] Figure 7 It is a waste gas collection and treatment equipment for extruders used in the production of cables.Figure 6 Partial enlarged view at C.

[0027] Figure 8 The utility model relates to a kind of production cable extruder exhaust collection processing equipment Figure 6 Partial enlarged view at D.

[0028] Figure 9 The utility model relates to a kind of production cable extruder exhaust collection processing equipment after shell is removed Figure 1 .

[0029] Figure 10 The utility model relates to a kind of production cable extruder exhaust collection processing equipment after shell is removed Figure 2 .

[0030] Figure label is:

[0031] 1, shell;11, upper cavity;12, lower cavity;2, gas supply unit;21, gas supply bin;22, gas supply pipe;3, filter cotton;31, support frame;4, filter bin;41, bubble generator;5, flushing unit;51, flushing disc;511, first through port;52, flushing pipe;53, drive unit;531, gear ring;532, gear;533, rotary driver;6, receiving unit;61, receiving disc;611, second through port;612, receiving groove;613, roller;614, extension pipe;7, collection unit;71, collection shell;72, filter screen;73, circulation unit;731, circulation pipe. DETAILED DESCRIPTION

[0032] To further understand the features, technical means and specific purposes and functions achieved by the present application, the present application is described in further detail below in conjunction with the drawings and specific embodiments.

[0033] Reference Figures 1-3 : a kind of production cable extruder exhaust collection processing equipment, including the shell 1 of bottom being provided with gas supply unit 2;Gas supply unit 2 upper portion is provided with the filter cotton 3 that can separate shell 1 into upper cavity 11 and lower cavity 12, upper cavity 11 and lower cavity 12 are arranged from top to bottom along the vertical direction of shell 1, lower cavity 12 is injected with liquid medicine, and the liquid level of liquid medicine is coplanar with the upper end surface of filter cotton 3, the output end of gas supply unit 2 extends to lower cavity 12, filter bin 4 is arranged on the upper portion of upper cavity 11, bubble generator 41 in communication with upper cavity 11 is arranged in filter bin 4, filter bin 4 has liquid medicine that can immerse bubble generator 41, exhaust gas enters lower cavity 12 first by gas supply unit 2 and then passes through filter cotton 3 and enters upper cavity 11, and the filtered exhaust gas is injected into the liquid medicine in filter bin 4 by bubble generator 41.

[0034] The extruder produces a lot of waste gas when producing cables, and the waste gas is mostly organic waste gas and also contains particulate matter. Therefore, when treating the waste gas, it needs to be treated in steps, that is, the particulate matter in the waste gas needs to be filtered first, and then the filtered waste gas is further treated. In order to realize the above steps, the filter cotton 3 and the filter bin 4 are arranged in the shell 1. The specific working principle is as follows. The air supply unit 2 first injects the waste gas into the lower cavity 12. Since the lower cavity 12 is filled with liquid medicine, the liquid medicine refers to a liquid that can absorb organic matter in the waste gas. The specific composition of the liquid medicine needs to be configured according to the composition of the waste gas produced in actual production. The liquid medicine is a prior art, so it will not be described here. Since the lower cavity 12 is filled with liquid medicine, the air injected into the lower cavity 12 rises to the upper part of the lower cavity 12 and contacts the filter cotton 3. Since the filter cotton 3 has air permeability, even if the filter cotton 3 is in a wet state, the waste gas injected into the lower cavity 12 can also pass through the filter cotton 3. It is worth noting that the filter cotton 3 is preferably a sponge. Therefore, although the gas part of the waste gas can pass through the filter cotton 3, the particulate matter in the waste gas cannot pass through the filter cotton 3. Therefore, the gas part of the waste gas passes through the filter cotton 3 into the upper cavity 11, and the particulate matter in the waste gas is intercepted by the filter cotton 3. The particulate matter is located at the bottom of the filter cotton 3. The gas part of the waste gas that has passed through the filter cotton 3 enters the upper cavity 11 and is then sucked by the bubble generator 41. The gas part of the waste gas is injected into the liquid medicine in the filter bin 4. Since the bubble generator 41 can generate nanometer micro-bubbles, the contact area between the bubble-treated waste gas and the liquid medicine is greatly increased, thereby improving the contact effect. At the same time, since the waste gas extracted by the bubble generator 41 has been filtered by the filter cotton 3, that is, the waste gas does not contain particulate matter. Therefore, it can avoid the situation that the particulate matter blocks the bubble generator 41, thereby prolonging the service life of the bubble generator 41. The lower part of the filter bin 4 is provided with the upper cavity 11, so that the input end of the bubble generator 41 will not suck the liquid medicine when extracting air, thereby affecting the bubble generation effect of the bubble generator 41. After the waste gas is bubble-treated, the harmful substances in the waste gas are absorbed, and the remaining gas is discharged through the upper part of the shell 1. The upper part of the shell 1 is provided with an exhaust port, and the remaining gas is discharged through the exhaust port.

[0035] Referring to Figures 3-5 : A flushing unit 5 is arranged in the upper cavity 11. The flushing unit 5 includes a flushing disc 51 arranged to rotate along the axis of the shell 1. A first through port 511 is vertically arranged on the flushing disc 51. The flushing port of the flushing disc 51 vertically faces downward. The flushing port generates a water flow from top to bottom in the vertical direction. The water flow passes through the filter cotton 3 from top to bottom. The first through port 511 and the flushing port are arranged alternately around the axis of the shell 1.

[0036] Since the washing disc 51 can rotate in the shell 1, and the first through hole is arranged on the washing disc 51, the waste gas supplied by the air supply unit 2 can enter into the upper cavity 11 through the first through hole 511 after passing through the filter cotton 3. Due to the continuous operation of the air supply unit 2, the air supply unit 2 continuously supplies the waste gas into the lower cavity 12, so that the vertical airflow from bottom to top always exists in the lower cavity 12. In this way, the particulate matter is all gathered at the bottom of the filter cotton 3. If the particulate matter at the bottom of the filter cotton 3 is not cleaned for a long time, the particulate matter will block the bottom of the filter cotton 3, which will further cause the permeability of the filter cotton 3 to be greatly reduced. In order to avoid the above situation, the rotating washing disc 51 is arranged at the upper part of the filter cotton 3. The washing port of the washing disc 51 vertically faces downward, and the washing port and the first through hole are staggered. The washing port generates the water flow from top to bottom, and the water flow passes through the filter cotton 3 from top to bottom and washes the particulate matter gathered at the bottom of the filter cotton 3. The washing pipe 52 which is in communication with the washing disc 51 is vertically arranged at the upper part of the washing disc 51. The washing disc 51 rotates synchronously with the washing pipe 52. The first water pump is connected to the end of the washing pipe 52 away from the washing disc 51. The first water pump can pump the liquid medicine into the washing pipe 52, so that the liquid medicine enters the washing disc 51 through the washing pipe 52 and flows out from the washing port of the washing disc 51.

[0037] With reference to Figure 3 , Figure 8 and Figure 10 : The receiving unit 6 is arranged at the bottom of the filter cotton 3. The receiving unit 6 includes the receiving disc 61 which is rotatably arranged at the lower part of the filter cotton 3 along the axis of the shell 1. The second through hole 611 is arranged on the receiving disc 61 in the vertical direction. The receiving groove 612 is arranged on the upper part of the receiving disc 61. The receiving groove 612 is staggered with the second through hole 611. The receiving disc 61 rotates synchronously with the washing disc 51. The projection of the second through hole 611 and the first through hole 511 in the vertical direction always coincides.

[0038] Since the receiving disc 61 and the washing disc 51 rotate synchronously, and the projections of the first passing port 511 and the second passing port 611 in the vertical direction completely coincide, when the receiving disc 61 and the washing disc 51 rotate synchronously, the washing disc 51 discharges the water flow along the vertical direction from top to bottom, so after the air supply unit 2 supplies the exhaust gas into the lower cavity 12, the exhaust gas rises along the vertical direction, enters the filter cotton 3 through the second passing port 611 on the receiving disc 61, and the particulate matters in the exhaust gas are intercepted by the filter cotton 3, the gas part of the exhaust gas is discharged from the first passing port 511 of the washing disc 51 after passing through the filter cotton 3, at the same time, the filter cotton 3 is washed from top to bottom by the water flow discharged by the washing disc 51, and the receiving groove 612 is arranged below the washing port of the washing disc 51, so that the particulate matters attached to the bottom of the filter cotton 3 are washed down by the water flow discharged by the washing disc 51 and received by the receiving groove 612, so that the filter cotton 3 can filter the particulate matters in the exhaust gas and clean the particulate matters attached to the filter cotton 3.

[0039] With reference to Figure 8 And Figure 10 : The receiving groove 612 has an arc-shaped structure, and the receiving disc 61 is provided with a roller 613 on each side of the upper opening of the receiving groove 612, and the roller 613 rolls with the bottom of the filter cotton 3 when the receiving disc 61 rotates, the roller 613 has a pressing force on the bottom of the filter cotton 3, and the roller 613, the receiving groove 612 and the filter cotton 3 together form a receiving cavity.

[0040] By arranging the roller 613 on the receiving groove 612, the roller 613, the receiving groove 612 and the filter cotton 3 together form a receiving cavity, so as to reduce the amount of the water flow discharged by the washing disc 51 and diffused into the lower cavity 12 after passing through the filter cotton 3, and if the diffusion amount of the water flow discharged by the washing disc 51 is large, the water flow flowing to the lower part of the filter cotton 3 will have a low flow rate, which will cause the particulate matters at the bottom of the filter cotton 3 to be unable to be normally washed down, and after the roller 613 is arranged, the filter cavity is formed, and the washing effect of the washing disc 51 on the filter cotton 3 is improved.

[0041] With reference to Figure 5 : The filter cotton 3 is fixedly provided with a support frame 31, and the support frame 31 is fixedly connected with the inner wall of the shell 1.

[0042] As the flushing disc 51 generates a vertical downward water flow when rotating, the water flow generates a vertical upward pushing force on the filter cotton 3, and in order to ensure that the flow pushing force of the water flow is not easily diffused, a receiving disc 61 with a roller 613 is further arranged at the bottom of the filter cotton 3, and the roller 613 generates a pressing force on the bottom of the filter cotton 3 when rotating with the receiving disc 61. Thus, the filter cotton 3 is easily subjected to the vertical pushing force and pressure. If the support frame 31 is not arranged in the filter cotton 3, and only the filter cotton 3 is fixedly connected with the inner wall of the shell 1, long-time use will easily cause the filter cotton 3 to be pulled and damaged, and even the filter cotton 3 will be separated from the shell 1. In order to avoid the above situation, the support frame 31 is arranged in the filter cotton 3, so that the support frame 31 provides support for the filter cotton 3, thereby prolonging the service life of the filter cotton 3.

[0043] With reference to Figure 4 and Figure 6 The upper opening of the receiving groove 612 is larger than the lower opening of the receiving groove 612, and a vertical extension pipe 614 in communication with the receiving groove 612 is arranged at the lower opening of the receiving groove 612, and the particulate matter received by the receiving groove 612 is discharged through the extension pipe 614.

[0044] Thus, the particulate matter entering the receiving groove 612 is more easily discharged into the extension pipe 614 through the receiving groove 612. Due to the shape of the receiving groove 612, the lower part of the receiving disc 61 has a guiding effect on the exhaust gas in the lower cavity 12, and the exhaust gas in the lower cavity 12 will not directly impact on the bottom of the receiving disc 61 during the rising process, thereby avoiding damage to the bottom of the receiving disc 61 caused by the exhaust gas with particulate matter during the rising process.

[0045] With reference to Figures 1-3 A collecting unit 7 for collecting the particulate matter and the liquid medicine mixture is arranged at the lower part of the extension pipe 614, and the collecting unit 7 comprises a collecting shell 71, and a filter screen 72 is arranged in the collecting shell 71. The filter screen 72 is in an annular structure, and is arranged in the collecting shell 71 around the axis of the extension pipe 614. The filter screen 72 is uniformly provided with filter holes, and the filter screen 72 divides the collecting shell 71 into an inner cavity and an outer cavity. The inner cavity is in a cylindrical structure, and the outer cavity is in an annular structure. The particulate matter is entirely located in the inner cavity.

[0046] The extension pipe 614 extends into the collecting shell 71, and the filter screen 72 is arranged in the collecting shell 71 around the axis of the extension pipe 614. The liquid medicine discharged into the inner cavity through the extension pipe 614 contains particulate matter. Thus, the particulate matter needs to be filtered through the filter screen 72, so that the filtered liquid medicine can be discharged back to the upper part of the filter cotton 3. Otherwise, if the liquid medicine with particulate matter is discharged into the upper part of the filter cotton 3, the filter cotton 3 will be easily blocked, and the flushing disc 51 cannot flush the particulate matter in the upper part of the filter cotton 3.

[0047] With reference toFigure 1 、 Figure 6 and Figure 9 : The circulating unit 73 is arranged on the collecting shell 71, the circulating unit 73 comprises a circulating pipe 731, one end of the circulating pipe 731 is communicated with the outer cavity, the other end of the circulating pipe 731 is communicated with the upper cavity body 11, and the second water pump capable of pumping the liquid medicine in the collecting shell 71 to above the filter cotton 3 is arranged on the circulating pipe 731.

[0048] Referring to Figure 7 and Figure 9 : The driving unit 53 for driving the washing disc 51 to rotate is arranged on the upper portion of the washing disc 51, the driving unit 53 comprises a gear ring 531 which rotates synchronously with the washing disc 51, the gear ring 531 is located above the washing disc 51, the gear ring 531 is rotatably provided with a gear 532 on one side, the gear ring 531 and the gear 532 are meshed with each other, and the upper portion of the gear 532 is provided with a rotary driver 533, and the rotary driver 533 is used for driving the gear 532 to rotate.

[0049] The rotary driver 533 is preferably a servo motor, the gear ring 531 is sleeved on the washing pipe 52 and is fixedly connected with the washing pipe 52, when the air charging unit is started, the rotary driver 533 is started, the rotary driver 533 drives the gear ring 531 to rotate through the gear 532, and then the washing pipe 52 is rotated, since the washing pipe 52 is fixedly connected with the washing disc 51, so the washing pipe 52 can drive the washing disc 51 to rotate synchronously.

[0050] Referring to Figure 8 and Figure 9 : The air supply unit 2 comprises the air supply warehouse 21 arranged outside the extension pipe 614 and a plurality of extension pipes 614 arranged in the air supply warehouse 21, the extension pipe 614 penetrates through the air supply warehouse 21, and the plurality of extension pipes 614 are uniformly arranged on the upper portion of the air supply warehouse 21 around the axis of the shell 1, the extension pipe 614 forms a rotation body array structure around the extension pipe 614, the upper portion of the rotation body array structure is an air outlet end face of the extension pipe 614, the lower portion of the rotation body array structure is an air inlet end face of the extension pipe 614, and the area of the air outlet end face is greater than that of the air inlet end face.

[0051] Thus, the exhaust gas after entering into the gas supply bin 21 can enter into the gas supply pipe 22 from the gas inlet end of the gas inlet pipe, and the gas inlet end of the gas supply pipe 22 is part of the gas inlet end face, so that the area of the gas outlet end face is larger than that of the gas inlet end face, so as to ensure that the gas discharged through the gas supply pipe 22 can be more evenly distributed in the liquid medicine in the lower cavity 12, so that the liquid medicine in the lower cavity 12 can preliminarily absorb and treat the exhaust gas, and the exhaust gas is discharged into the lower cavity 12 through the plurality of gas supply pipes 22, so as to increase the contact area of the exhaust gas and the liquid medicine in the lower cavity 12, thereby improving the pretreatment effect. The gas inlet is arranged on the side wall of the gas supply bin 21, and the exhaust gas enters into the gas supply bin 21 through the gas inlet. In order to avoid that the liquid medicine in the lower cavity 12 flows back into the gas supply bin 21 through the gas supply pipe 22, a one-way valve is arranged at the gas inlet of the gas supply bin 21, and the exhaust gas outside can enter into the gas supply bin 21 through the one-way valve, and the gas in the gas supply bin 21 cannot flow out to the outside through the one-way valve.

[0052] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A waste gas collection and treatment device for an extruder used in cable production, comprising a housing with an air supply unit at the bottom; Its features are, A filter cotton is installed at the top of the air supply unit to divide the outer shell into an upper chamber and a lower chamber. The upper and lower chambers are arranged vertically from top to bottom along the outer shell. The lower chamber is filled with liquid medicine, and the liquid level of the liquid medicine is coplanar with the upper end face of the filter cotton. The output end of the air supply unit extends into the lower chamber. A filter chamber is installed at the top of the upper chamber. A bubble generator connected to the upper chamber is installed in the filter chamber. The filter chamber contains liquid medicine that can immerse the bubble generator. The exhaust gas enters the lower chamber through the air supply unit and then enters the upper chamber through the filter cotton. The bubble generator injects the filtered exhaust gas into the liquid medicine in the filter chamber. A rinsing unit is provided in the upper cavity. The rinsing unit includes a rinsing disc that is rotatably arranged along the axis of the outer shell. A first through-hole is vertically opened on the rinsing disc. The rinsing port of the rinsing disc faces vertically downward. The rinsing port generates water flow from top to bottom in the vertical direction. The water flow passes through the filter cotton from top to bottom. The first through-hole and the rinsing port are arranged alternately around the axis of the outer shell. A drive unit for driving the rinsing disc to rotate is provided on the upper part of the rinsing disc. A receiving unit is provided at the bottom of the filter cotton. The receiving unit includes a receiving plate that is rotatably disposed at the bottom of the filter cotton along the axis of the outer shell. A second passage is provided on the receiving plate in the vertical direction. A receiving groove is also provided on the upper part of the receiving plate. The receiving groove and the second passage are arranged alternately. The receiving plate rotates synchronously with the rinsing plate, and the projections of the second passage and the first passage in the vertical direction always coincide. The receiving groove has an arc-shaped structure, with rollers on both sides of the upper opening of the receiving groove. When the receiving plate rotates, the rollers roll and cooperate with the bottom of the filter cotton. The rollers exert a squeezing force on the bottom of the filter cotton. The rollers, the receiving groove, and the filter cotton together form the receiving cavity. The upper opening of the receiving tank is larger than the lower opening of the receiving tank. An extension pipe connected to the receiving tank is vertically installed at the lower opening of the receiving tank. The particles received by the receiving tank are discharged through the extension pipe.

2. The waste gas collection and treatment equipment for extruders used in cable production according to claim 1, characterized in that, A support frame is fixedly installed in the filter cotton, and the support frame is fixedly connected to the inner wall of the outer shell.

3. The waste gas collection and treatment equipment for extruders used in cable production according to claim 2, characterized in that, A collection unit for collecting particulate matter and drug solution mixture is provided at the lower part of the extension tube. The collection unit includes a collection shell and a filter screen inside the collection shell. The filter screen has a ring structure and is arranged around the axis of the extension tube in the collection shell. The filter screen has filter holes evenly arranged. The filter screen divides the collection shell into an inner cavity and an outer cavity. The inner cavity has a cylindrical structure and the outer cavity has a ring structure. All particulate matter is located in the inner cavity.

4. The waste gas collection and treatment equipment for extruders used in cable production according to claim 3, characterized in that, A circulation unit is provided on the collection shell. The circulation unit includes a circulation pipe. One end of the circulation pipe is connected to the outer cavity, and the other end of the circulation pipe is connected to the upper cavity. A second water pump is provided on the circulation pipe to draw the medicine liquid in the collection shell into the filter cotton above.

5. The waste gas collection and treatment equipment for extruders used in cable production according to claim 1, characterized in that, The drive unit includes a gear ring that rotates synchronously with the rinsing disc. The gear ring is located above the rinsing disc, and a gear is rotatably mounted on one side of the gear ring. The gear ring and the gear mesh with each other. A rotary driver is mounted on the upper part of the gear, which is used to drive the gear to rotate.

6. The waste gas collection and treatment equipment for extruders used in cable production according to claim 1, characterized in that, The gas supply unit includes a gas supply chamber disposed outside the extension pipe and multiple extension pipes disposed in the gas supply chamber. The extension pipes pass through the gas supply chamber, and the multiple extension pipes are evenly arranged around the axis of the outer shell on the upper part of the gas supply chamber. The extension pipes form a rotating array structure around the extension pipes. The upper part of the rotating array structure is the gas outlet end face of the extension pipe, and the lower part of the rotating array structure is the gas inlet end face of the extension pipe. The area of ​​the gas outlet end face is larger than the area of ​​the gas inlet end face.

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