A coking waste gas treatment device

Abstract

The present application belongs to the technical field of waste gas treatment, and particularly relates to a coking waste gas treatment device, which comprises a pretreatment box, an acid liquid spraying tower, an alkali liquid spraying tower, a condensation and filtration box, an adsorption box and a combustion and discharge chamber, and is characterized in that: the pretreatment box is provided with filter piece one and filter piece two, the pretreatment box is fixedly provided with a spiral pipe, the pretreatment box is provided with a rotary liquid spraying mechanism for removing impurities from waste gas, and the rotary liquid spraying mechanism is provided below with an anti-blocking mechanism. The coking waste gas treatment device is provided with a rotary liquid spraying mechanism and a spiral pipe in the pretreatment box, a water tank is driven to rotate by a motor, water in the water tank is sprayed out through a water spraying port, and the rotation of the shaft is matched to flush the impurities in the waste gas. The spiral pipe allows the waste gas to enter in a spiral shape, the impurities are condensed after meeting water and are easily thrown out under the action of centrifugal force, and the filtering effect of filter piece one and filter piece two greatly improves the removal efficiency of the impurities in the waste gas.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, in particular to a coking waste gas treatment device. BACKGROUND

[0002] In the coking production process, a large amount of waste gas containing various pollutants will be generated. These waste gases are complex in composition, containing sulfur dioxide, nitrogen oxides, particulate matter, and volatile organic compounds such as benzene, toluene, and xylene. When the coking waste gas treatment device is treating waste gas, it generally removes impurities in the gas by pretreatment, then sprays acid and alkali to neutralize the waste gas, then condenses the waste gas in the condensing box, filters the gas again to remove impurities and liquids in the gas, then adsorbs harmful gases in the waste gas, and finally burns and discharges the gas to achieve the treatment of coking waste gas.

[0003] At present, in the pretreatment process of coking waste gas, water flow is generally sprayed by a spray head to remove impurities contained in the gas. In this process, since the spray head is fixed and the range of the sprayed water flow is fixed, the pretreatment effect of the coking waste gas is poor. In view of this, a coking waste gas treatment device is proposed. SUMMARY

[0004] The main purpose of the present application is to provide a coking waste gas treatment device which can solve the problems raised in the background art.

[0005] To achieve the above purpose, the coking waste gas treatment device proposed by the present application comprises a pretreatment box, an acid liquid spraying tower, an alkali liquid spraying tower, a condensing and filtering box, an adsorption box and a combustion and discharge chamber, characterized in that: the pretreatment box is provided with filter part one and filter part two, and the pretreatment box is fixedly provided with a spiral pipe, the pretreatment box is provided with a rotating liquid spraying mechanism for removing impurities from waste gas, the lower part of the rotating liquid spraying mechanism is provided with an anti-blocking mechanism, and the rotating liquid spraying mechanism comprises:

[0006] A motor is fixedly connected to the output shaft of the motor, a rotating shaft is rotatably connected to the outer wall of the rotating shaft through a bearing, a circular plate is fixedly installed on the circular plate, and a water tank is fixedly installed on the circular plate.

[0007] A water inlet pipe is in communication with the water tank.

[0008] The inner groove is arranged in the rotating shaft, the outer wall of the rotating shaft is provided with a water passing hole, the water passing hole is communicated with the through hole on the water tank, the outer wall of the rotating shaft is provided with a water spraying port one and a water spraying port two, the rotating shaft is driven to rotate by the output shaft of the motor, the water passing hole on the rotating shaft can be staggered communicated with the through hole of the water tank, then the water in the water tank enters the inner groove of the rotating shaft, and is sprayed out through the water spraying port one and the water spraying port two, the rotation of the rotating shaft is matched, the impurities in the waste gas are preliminarily removed, and the waste gas can enter the pretreatment box in a spiral shape through the use of the spiral pipe, the impurities in the waste gas are condensed after meeting water, and are easily thrown out under the action of centrifugal force, so that the impurities in the waste gas are easily removed.

[0009] Preferably, the water spraying port one is located above the filter one, and the water spraying port two is located below the filter two.

[0010] Preferably, the filter one and the filter two are both composed of a filter screen, a supporting ring and an elastic telescopic rod, the supporting ring is fixed in the inner wall of the pretreatment box, and the filter screen is connected with the supporting ring through the elastic telescopic rod.

[0011] Preferably, the outer wall of the rotating shaft is fixedly connected with a fixed ring, the upper side of the fixed ring is fixedly connected with a cylinder, the fixed ring is penetrated by a vertical rod and is in sliding connection with the vertical rod, the vertical rod is fixedly connected with a round rod, the round rod is in sliding connection in the straight slot of a swing rod one, the swing rod one is hinged on a support one, the support one is fixedly connected with the fixed ring, and the end, away from the round rod, of the swing rod one is fixedly connected with an elastic ball one.

[0012] Preferably, the top of the cylinder and the upper and lower ends of the vertical rod are both installed with balls, and the ball on the top of the vertical rod is in abutment with the lower side of the filter screen of the filter one.

[0013] Preferably, the lower side of the filter screen of the filter one is fixedly installed with a notched ring, and the ball on the top of the cylinder is in abutment with the notched ring, in this way, when the rotating shaft drives the fixed ring to rotate, the ball on the top of the cylinder moves below the notched ring, the notched ring is pressed due to the fixed ring being stationary, so that the filter screen of the filter one can move up and down, the shaking effect is realized, the impurities adhered to the filter screen of the filter one are reduced, and the filter screen is prevented from being blocked.

[0014] Preferably, the anti-blocking mechanism comprises a connecting shaft rotatably connected to the bottom of the rotating shaft, a ratchet fixedly connected to the bottom of the rotating shaft, a pawl clamped to the ratchet, the pawl being fixedly connected to the connecting shaft, a sliding disc slidably connected to the outer wall of the connecting shaft, a fixed disc fixedly connected to the outer wall of the connecting shaft, an auxiliary dredging assembly arranged below the sliding disc, a cleaning brush fixedly connected to the bottom of the connecting shaft, a swing rod two hingedly connected to the lower side of the sliding disc, a straight slot formed in the swing rod two, the hinged shaft of the sliding disc and the swing rod two being slidable in the straight slot, a support two hingedly connected to the swing rod two, and an elastic ball two fixedly connected to the bottom of the swing rod two.

[0015] Preferably, the auxiliary dredging assembly comprises a gas chamber, a piston ring connected to a piston in the gas chamber, a support rod fixedly connected to the top of the piston ring, the support rod being fixed to the sliding disc, the piston ring being elastically connected to the inner wall of the gas chamber through a return spring, a gas pipe communicated with the gas chamber, a one-way nozzle communicated with the end of the gas pipe away from the gas chamber, and a one-way air inlet communicated with the gas chamber, due to the up-down movement of the filter screen of the filter one, the vertical rod is extruded, and then the vertical rod extrudes the sliding disc, under the action of the return spring, the support rod and the piston ring move up and down, the sliding disc moves up and down, the swing rod two swings, the elastic ball two knocks and vibrates the filter screen of the filter two, preventing the filter screen of the filter two from being blocked, and during the up-down movement of the vertical rod, the round rod moves up and down, the swing rod one swings, and the elastic ball one knocks and vibrates the filter screen of the filter one, preventing the filter screen of the filter one from being blocked, during the up-down movement of the piston ring, the gas in the gas chamber realizes the functions of gas emission and gas suction, the gas in the gas chamber can enter the one-way nozzle through the gas pipe to be sprayed out, further preventing the filter screen of the filter two from being blocked.

[0016] Preferably, an exhaust port is formed in the outer wall of the pretreatment box, the exhaust port is communicated with a collection box, the collection box is detachably connected to the outer wall of the pretreatment box, the filter screen of the filter two is fixedly connected with a foreign matter discharge port, and an electromagnetic valve is arranged on the foreign matter discharge port.

[0017] Preferably, the pretreatment box, the acid liquid spray tower, the alkali liquid spray tower, the condensation and filtration box, the adsorption box and the combustion and discharge chamber are communicated through pipelines.

[0018] The coking waste gas treatment device has the following beneficial effects:

[0019] (1)、The coking waste gas treatment device is provided with a rotating liquid spraying mechanism and a spiral pipe in the pretreatment box, a rotating shaft is driven by a motor to rotate, water in the water tank is sprayed out through a water spraying port, and the rotating shaft is rotated to flush the impurities in the waste gas. The spiral pipe allows the waste gas to enter in a spiral shape, the impurities are condensed after meeting water, and are easily thrown out under the action of centrifugal force. Through the filtering effect of filter element one and filter element two, the removal efficiency of impurities in the waste gas is greatly improved, the subsequent treatment burden is reduced, the concentrated treatment of impurities is facilitated, the impurity content in the recycled water is reduced, and the cost of subsequent treatment of the recycled water is reduced.

[0020] (2)、The coking waste gas treatment device is used in cooperation with the rotating liquid spraying mechanism and the anti-blocking mechanism. The rotating shaft drives the fixed ring to move the ball at the top of the cylinder under the notched ring, shake the filter screen of filter element one up and down, and reduce the adhesion of impurities. The ratchet and the pawl cooperate to drive the cleaning brush to clean the filter screen of filter element two when needed. The movement of the filter screen of filter element one also extrudes the vertical rod, drives the sliding disc and the swing rod, and makes the elastic ball knock the filter screen of filter element one and two, effectively preventing the blockage of filter element one and filter element two, and ensuring the continuous and stable operation of the device.

[0021] (3)、The coking waste gas treatment device uses the auxiliary dredging assembly, so that the gas in the gas tank realizes the functions of gas emission and gas absorption during the up-down movement of the piston ring. The gas in the gas tank can enter the one-way nozzle through the air pipe and be sprayed out, and the impurities on the filter screen two are blown, further preventing the blockage of the filter screen of filter element two. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0024] Figure 2 It is a schematic diagram of the internal structure of the pretreatment box of the present application Figure 1 ;

[0025] Figure 3 It is a schematic diagram of the internal structure of the pretreatment box of the present application Figure 2 ;

[0026] Figure 4 It is a schematic diagram of the structure of the rotating liquid spraying mechanism and the anti-blocking mechanism of the present application;

[0027] Figure 5 A structure diagram in the present application Figure 4

[0028] Figure 6 A structure diagram of the anti-blocking mechanism in the present application

[0029] Figure 7 A structure diagram of the anti-blocking mechanism in the present application

[0030] Figure 8 A structure diagram of the anti-blocking mechanism in the present application

[0031] Figure 9 A structure diagram of the notch ring and the filter in the present application

[0032] Figure 10 A structure diagram of the pretreatment tank in the present application

[0033] Figure 11 B structure diagram in the present application Figure 10

[0034] Explanation of reference numerals:

[0035] 1, pretreatment tank; 2, filter one; 3, filter two; 4, spiral pipe; 5, rotating liquid spraying mechanism; 6, anti-blocking mechanism; 7, acid liquid spraying tower; 8, alkali liquid spraying tower; 9, condensation filter tank; 10, adsorption tank; 11, combustion discharge chamber; 101, discharge port; 21, notch ring; 31, impurity discharge port; 51, motor; 52, rotating shaft; 53, circular plate; 54, water tank; 55, water inlet pipe; 56, fixed ring; 57, cylinder; 58, vertical rod; 59, circular rod; 510, swing rod one; 511, support one; 512, elastic ball one; 521, inner groove; 522, water passage; 523, water spraying port one; 524, water spraying port two; 61, connecting shaft; 62, ratchet wheel; 63, sliding disc; 64, fixed disc; 65, auxiliary dredging assembly; 66, cleaning brush; 67, support two; 68, swing rod two; 69, elastic ball two; 611, ratchet pawl; 651, air chamber; 652, piston ring; 653, support rod; 654, air pipe; 655, one-way spraying head.

[0036] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0037] ​​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0038] Please refer to Figures 1-11 The present application provides a coking waste gas treatment device, comprising a pretreatment box 1, an acid liquid spraying tower 7, an alkali liquid spraying tower 8, a condensation and filtration box 9, an adsorption box 10 and a combustion and discharge chamber 11. The pretreatment box 1, the acid liquid spraying tower 7, the alkali liquid spraying tower 8, the condensation and filtration box 9, the adsorption box 10 and the combustion and discharge chamber 11 are connected by pipelines. The pretreatment box 1 removes the impurities preliminarily contained in the waste gas. The acid liquid spraying tower 7 and the alkali liquid spraying tower 8 remove the acid and alkali impurities in the waste gas. The condensation and filtration box 9 condenses and filters the waste gas to remove the impurities in the gas and the liquid. The adsorption box 10 adsorbs the harmful gas in the waste gas. The combustion and discharge chamber 11 combusts and discharges the treated gas. The pretreatment box 1 is provided with a filter 2 and a filter 3. The pretreatment box 1 is fixedly installed with a spiral pipe 4. The pretreatment box 1 is provided with a rotating liquid spraying mechanism 5 for removing the impurities in the waste gas. The rotating liquid spraying mechanism 5 is provided below with an anti-blocking mechanism 6.

[0039] In the embodiment of the present application, the rotating liquid spraying mechanism 5 comprises a motor 51, a water inlet pipe 55 and an inner groove 521, the output shaft of the motor 51 is fixedly connected with a rotating shaft 52, the outer wall of the rotating shaft 52 is rotatably connected with a circular plate 53 through a bearing, the circular plate 53 is fixedly installed with a water bin 54, the water inlet pipe 55 is communicated with the water bin 54, the inner groove 521 is arranged in the rotating shaft 52, the outer wall of the rotating shaft 52 is provided with a water passing hole 522, the water passing hole 522 is communicated with the through hole of the water bin 54, the outer wall of the rotating shaft 52 is provided with a water spraying opening one 523 and a water spraying opening two 524, the water spraying opening one 523 is located above the filtering piece one 2, the water spraying opening two 524 is located below the filtering piece two 3, the rotating shaft 52 is driven to rotate by the output shaft of the motor 51, because the water bin 54 is stationary, the water passing hole 522 on the rotating shaft 52 can be staggered with the through hole of the water bin 54, and then the water in the water bin 54 enters the inner groove 521 of the rotating shaft 52, and then is sprayed out through the water spraying opening one 523 and the water spraying opening two 524, cooperating with the rotation of the rotating shaft 52, the impurities in the waste gas are preliminarily removed, and through the use of the spiral pipe 4, the waste gas can enter the pretreatment box 1 in a spiral shape, the impurities in the waste gas are condensed after meeting water, and are easily thrown out under the action of centrifugal force, facilitating the removal of impurities in the waste gas, greatly improving the removal efficiency of impurities in the waste gas, reducing the subsequent treatment burden, at the same time, under the action of the filtering piece one 2 and the filtering piece two 3, the water flow can be separated from the impurities, facilitating the concentrated treatment of the impurities and reducing the impurity content in the recycled water, reducing the cost of subsequent treatment of the recycled water.

[0040] Further, the filtering piece one 2 and the filtering piece two 3 are both composed of a filter screen, a supporting ring and an elastic telescopic rod, the supporting ring is fixed in the inner wall of the pretreatment box 1, and the filter screen is connected with the supporting ring through the elastic telescopic rod, in this way, the filter screens of the filtering piece one 2 and the filtering piece two 3 can move up and down to a certain extent.

[0041] Further, the outer wall of the rotating shaft 52 is fixedly connected with a fixed ring 56, the upper side of the fixed ring 56 is fixedly connected with a cylinder 57, the fixed ring 56 is penetrated by a vertical rod 58 and is in sliding connection with the vertical rod 58, the vertical rod 58 is fixedly connected with a round rod 59, the round rod 59 is in sliding connection in a straight slot of a swing rod one 510, the swing rod one 510 is hinged on a support one 511, the support one 511 is fixedly connected with the fixed ring 56, the end of the swing rod one 510 away from the round rod 59 is fixedly connected with an elastic ball one 512, the top of the cylinder 57 and the upper and lower ends of the vertical rod 58 are all installed with rolling balls, the rolling ball at the top of the cylinder 57 is in abutment with the lower side of the filter screen of the filtering piece one 2, the lower side of the filter screen of the filtering piece one 2 is fixedly installed with a notched ring 21, the rolling ball at the top of the cylinder 57 is in abutment with the notched ring 21, in the process of driving the fixed ring 56 to rotate, the rolling ball at the top of the cylinder 57 moves at the lower side of the notched ring 21, because the fixed ring 56 is stationary, the notched ring 21 is pressed, so that the filter screen of the filtering piece one 2 can move up and down, the shaking effect is realized, the impurities adhered to the filter screen of the filtering piece one 2 are reduced, and the filter screen is prevented from being blocked.

[0042] Further, the anti-blocking mechanism 6 comprises a connecting shaft 61, the connecting shaft 61 is in rotary connection with the bottom of the rotating shaft 52, the bottom of the rotating shaft 52 is fixedly connected with a ratchet wheel 62, the ratchet wheel 62 is clamped with a pawl 611, the pawl 611 is fixedly connected with the connecting shaft 61, the outer wall of the connecting shaft 61 is in sliding connection with a sliding disc 63, the outer wall of the connecting shaft 61 is fixedly connected with a fixed disc 64, the lower side of the sliding disc 63 is provided with an auxiliary dredging assembly 65, the bottom of the connecting shaft 61 is fixedly connected with a cleaning brush 66, the lower side of the sliding disc 63 is hinged with a swing rod two 68, the swing rod two 68 is provided with a straight slot, and the hinged shaft of the sliding disc 63 and the swing rod two 68 can slide in the straight slot, the swing rod two 68 is hinged with a support two 67, the bottom of the swing rod two 68 is fixedly connected with an elastic ball two 69, through the use of the ratchet wheel 62 and the pawl 611, the connecting shaft 61 can only rotate in one direction, and then when the filter screen of the filtering piece two 3 needs to be cleaned, the output shaft of the motor 51 drives the rotating shaft 52 to rotate clockwise, because of the limiting effect of the pawl 611, the connecting shaft 61 rotates clockwise, the cleaning brush 66 moves, and the filter screen of the filtering piece two 3 is cleaned, when the filter screen does not need to be cleaned, the output shaft of the motor 51 rotates counterclockwise, and the water flow is not affected, and the preliminary removal of impurities in the exhaust gas is ensured.

[0043] Further, the auxiliary dredging assembly 65 comprises an air chamber 651, a piston ring 652 is connected to a piston in the air chamber 651, the top of the piston ring 652 is fixedly connected with a support rod 653, the support rod 653 is fixed with the sliding disc 63, the piston ring 652 is elastically connected with the inner wall of the air chamber 651 through a return spring, the air chamber 651 is communicated with an air pipe 654, one end of the air pipe 654 away from the air chamber 651 is communicated with a one-way nozzle 655, the air chamber 651 is communicated with a one-way air inlet, in the process of the filter screen of the filter piece one 2 moving up and down, the vertical rod 58 is extruded, and then the vertical rod 58 extrudes the sliding disc 63, the support rod 653 and the piston ring 652 move up and down under the action of the return spring, the gas in the air chamber 651 realizes the functions of gas emission and gas suction, the gas suction is that the gas enters from the one-way air inlet, and the gas emission is that the gas in the air chamber 651 enters the one-way nozzle 655 through the air pipe 654 and is sprayed out, further preventing the filter screen of the filter piece two 3 from being blocked.

[0044] It should be noted that in the process of the vertical rod 58 moving up and down, the round rod 59 moves up and down, the round rod 59 slides in the straight slot of the swing rod one 510, and then drives the swing rod one 510 to swing, so that the elastic ball one 512 knocks and vibrates the filter screen of the filter piece one 2, preventing the filter screen of the filter piece one 2 from being blocked, and at the same time, in the process of the sliding disc 63 moving up and down, the swing rod two 68 is driven to swing, and the elastic ball two 69 knocks and vibrates the filter screen of the filter piece two 3, preventing the filter screen of the filter piece two 3 from being blocked.

[0045] Further, the outer wall of the pretreatment box 1 is provided with a discharge port 101, the discharge port 101 is communicated with a collection box, the collection box is detachably connected to the outer wall of the pretreatment box 1, the filter screen of the filter piece two 3 is fixedly connected with a foreign matter discharge port 31, an electromagnetic valve is arranged on the foreign matter discharge port 31, and the discharge port 101 and the foreign matter discharge port 31 are both used for discharging condensed impurities, wherein, a liquid discharge port is further arranged on the bottom of the pretreatment box 1, and through the use of the liquid discharge port, water flow can be discharged.

[0046] It should be noted that the above-mentioned electrical components are all products of the prior art, which can be selected, installed and debugged by those skilled in the art according to the needs of use, to ensure that each electrical appliance can work normally, and the components are all general standard components or components known to those skilled in the art, the structure and principle of which can be known by technical personnel through technical manual or through conventional experimental methods, which are not limited here.

[0047] In use, the exhaust gas enters the pretreatment box 1 through the spiral pipe 4, the output shaft of the motor 51 drives the rotating shaft 52 to rotate, since the water tank 54 is stationary, the water hole 522 on the rotating shaft 52 can be in staggered communication with the through hole of the water tank 54, and then the water in the water tank 54 enters the inner groove 521 of the rotating shaft 52, and is sprayed out through the water spraying port one 523 and the water spraying port two 524, cooperating with the rotation of the rotating shaft 52, the impurities in the exhaust gas are preliminarily removed, since the exhaust gas spirally enters the pretreatment box 1, the impurities in the exhaust gas are condensed after meeting water, and are easily thrown out under the action of centrifugal force, and the impurities in the exhaust gas are preliminarily removed.

[0048] Meanwhile, the rotating shaft 52 drives the fixed ring 56 to rotate, the ball at the top of the cylinder 57 moves on the lower side of the notched ring 21, since the fixed ring 56 is stationary, the notched ring 21 is extruded, so that the filter screen of the filter one 2 can move up and down, the shaking effect is realized, the impurities adhered to the filter screen of the filter one 2 are reduced, when the filter screen of the filter two 3 needs to be cleaned, the output shaft of the motor 51 drives the rotating shaft 52 to rotate clockwise, since the limiting action of the pawl 611, the connecting shaft 61 rotates clockwise, the cleaning brush 66 moves, and the filter screen of the filter two 3 is cleaned.

[0049] Meanwhile, in the process that the filter screen of the filter one 2 moves up and down, the extruded vertical rod 58 extrudes the sliding disc 63, cooperating with the action of the return spring, the support rod 653 and the piston ring 652 move up and down, the gas in the air chamber 651 realizes the functions of air intake and air exhaust, the air intake is that the gas enters from the one-way air inlet, and the air exhaust is that the gas in the air chamber 651 enters the one-way nozzle 655 through the air pipe 654 and is sprayed out, which assists in cleaning the filter screen of the filter two 3.

[0050] Meanwhile, in the process that the vertical rod 58 moves up and down, the round rod 59 moves up and down, the round rod 59 slides in the straight slot of the swing lever one 510, and then drives the swing lever one 510 to swing, so that the elastic ball one 512 knocks and vibrates the filter screen of the filter one 2, preventing the filter screen of the filter one 2 from being blocked, meanwhile, in the process that the sliding disc 63 moves up and down, the swing lever two 68 swings, and the elastic ball two 69 knocks and vibrates the filter screen of the filter two 3, preventing the filter screen of the filter two 3 from being blocked.

[0051] The above description is only the preferred embodiment of the present application, and does not limit the patent range of the present application, any equivalent structural transformation made according to the content of the present application and the drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A coking waste gas treatment device, comprising a pretreatment tank (1), an acid spray tower (7), an alkali spray tower (8), a condensation filter tank (9), an adsorption tank (10), and a combustion emission chamber (11), characterized in that: The pretreatment box (1) is equipped with filter element one (2) and filter element two (3). A spiral tube (4) is fixedly installed in the pretreatment box (1). The pretreatment box (1) is equipped with a rotary spraying mechanism (5) for preliminary removal of impurities from exhaust gas. An anti-clogging mechanism (6) is provided below the rotary spraying mechanism (5). The rotary spraying mechanism (5) includes: A motor (51) has a rotating shaft (52) fixedly connected to its output shaft. A circular plate (53) is rotatably connected to the outer wall of the rotating shaft (52) via a bearing. A water tank (54) is fixedly installed on the circular plate (53). Water inlet pipe (55), which is connected to water tank (54); The inner groove (521) is located in the rotating shaft (52). A water passage hole (522) is provided on the outer wall of the rotating shaft (52). The water passage hole (522) is connected to the through hole on the water tank (54). A water spray nozzle one (523) and a water spray nozzle two (524) are provided on the outer wall of the rotating shaft (52). The anti-clogging mechanism (6) includes a connecting shaft (61), which is rotatably connected to the bottom of a rotating shaft (52). A ratchet (62) is fixedly connected to the bottom of the rotating shaft (52), and a pawl (611) is engaged with the ratchet (62). The pawl (611) is fixedly connected to the connecting shaft (61). A sliding disk (63) is slidably connected to the outer wall of the connecting shaft (61), and a fixed disk (64) is fixedly connected to the outer wall of the connecting shaft (61). An auxiliary unblocking component (65) is provided below the sliding disc (63). A cleaning brush (66) is fixedly connected to the bottom of the connecting shaft (61). A swing rod two (68) is hinged to the lower side of the sliding disc (63). A straight groove is opened on the swing rod two (68), and the hinge shaft between the sliding disc (63) and the swing rod two (68) can slide in the straight groove. A bracket two (67) is hinged to the swing rod two (68). An elastic ball two (69) is fixedly connected to the bottom of the swing rod two (68). The auxiliary unblocking component (65) includes an air chamber (651), in which a piston is connected to a piston ring (652), and a support rod (653) is fixedly connected to the top of the piston ring (652). The support rod (653) is fixed to the sliding disc (63). The piston ring (652) is elastically connected to the inner wall of the air chamber (651) by a return spring. The air chamber (651) is connected to an air pipe (654), and one end of the air pipe (654) away from the air chamber (651) is connected to a one-way nozzle (655). The air chamber (651) is connected to a one-way air inlet.

2. The coking waste gas treatment device according to claim 1, characterized in that: The first water nozzle (523) is located above the first filter element (2), and the second water nozzle (524) is located below the second filter element (3).

3. The coking waste gas treatment device according to claim 1, characterized in that: Both filter element one (2) and filter element two (3) consist of a filter screen, a support ring, and an elastic telescopic rod. The support ring is fixed in the inner wall of the pretreatment box (1), and the filter screen is connected to the support ring through the elastic telescopic rod.

4. The coking waste gas treatment device according to claim 1, characterized in that: A fixing ring (56) is fixedly connected to the outer wall of the rotating shaft (52). A cylinder (57) is fixedly connected to the upper side of the fixing ring (56). The fixing ring (56) is penetrated by a vertical rod (58) and is slidably connected to the vertical rod (58). A round rod (59) is fixedly connected to the vertical rod (58). The round rod (59) is slidably connected to the straight groove of the swing rod (510). The swing rod (510) is hinged to the bracket (511). The bracket (511) is fixedly connected to the fixing ring (56). An elastic ball (512) is fixedly connected to the end of the swing rod (510) away from the round rod (59).

5. The coking waste gas treatment device according to claim 4, characterized in that: Ball bearings are installed at the top of the cylinder (57) and at both ends of the vertical rod (58). The ball bearings at the top of the vertical rod (58) abut against the lower side of the filter screen of the filter element (2).

6. The coking waste gas treatment device according to claim 4, characterized in that: A notched ring (21) is fixedly installed on the lower side of the filter screen of the filter element (2), and the ball bearings at the top of the cylinder (57) abut against the notched ring (21).

7. The coking waste gas treatment device according to claim 3, characterized in that: The pretreatment box (1) has an outlet (101) on its outer wall. The outlet (101) is connected to the collection box. The collection box is detachably connected to the outer wall of the pretreatment box (1). The bottom of the filter screen of the filter element (3) is fixedly connected to a discharge port (31). A solenoid valve is provided on the discharge port (31).

8. The coking waste gas treatment device according to claim 1, characterized in that: The pretreatment tank (1), acid spray tower (7), alkali spray tower (8), condensation filter tank (9), adsorption tank (10) and combustion emission chamber (11) are all connected by pipelines.

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