Coking waste gas treatment device

Abstract

The invention 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 liquor spray tower, an alkali liquor spray tower, a condensation filter box, an adsorption box and a combustion discharge chamber, and is characterized in that a filter part I and a filter part II are arranged in the pretreatment box, and a spiral pipe is fixedly mounted in the pretreatment box; a rotary liquid spraying mechanism for preliminarily removing waste gas impurities is arranged in the pretreatment box, and an anti-blocking mechanism is arranged below the rotary liquid spraying mechanism. According to the coking waste gas treatment device, the rotary liquid spraying mechanism and the spiral pipe are arranged in the pretreatment box, and the motor drives the rotating shaft to rotate, so that water in the water sump is sprayed out through the water spraying opening and cooperates with rotation of the rotating shaft to flush waste gas impurities. Waste gas enters the spiral pipe in a spiral mode, impurities are easily thrown out under the action of centrifugal force after being condensed when meeting water, and the removal efficiency of the impurities in the waste gas is greatly improved through the filtering action of the first filtering piece and the second filtering piece.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and specifically to a coking waste gas treatment device. Background Art

[0002] During the coking production process, a large amount of waste gas containing various pollutants is generated. These waste gas components are complex, including sulfur dioxide, nitrogen oxides, particulate matter, and volatile organic compounds such as benzene, toluene, and xylene. When the coking waste gas treatment device treats the waste gas, generally, the impurities in the gas are removed by pretreatment first, then the waste gas is neutralized by spraying acid liquid and alkali liquid, then the waste gas is condensed in a condensation box, and the gas is filtered again to remove the impurities and liquid in the gas, then the harmful gases in the waste gas are adsorbed, and finally the gas is burned and discharged to achieve the treatment of coking waste gas.

[0003] Currently, during the pretreatment of coking waste gas, generally, the impurities in the gas are removed by spraying water flow through a nozzle. In this process, since the nozzle is fixed and the range of the sprayed water flow is fixed, the pretreatment effect of coking waste gas is poor. In view of this, a coking waste gas treatment device is proposed. Summary of the Invention

[0004] The main object of the present invention is to provide a coking waste gas treatment device that can solve the problems raised in the above background art.

[0005] To achieve the above object, the coking waste gas treatment device proposed by the present invention includes a pretreatment tank, an acid liquid spray tower, an alkali liquid spray tower, a condensation and filtration tank, an adsorption tank, and a combustion and emission chamber, and is characterized in that: a first filter element and a second filter element are arranged in the pretreatment tank, a spiral pipe is fixedly installed in the pretreatment tank, a rotating liquid spraying mechanism for initially removing waste gas impurities is arranged in the pretreatment tank, and an anti-blocking mechanism is arranged below the rotating liquid spraying mechanism. The rotating liquid spraying mechanism includes:

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

[0007] A water inlet pipe, the water inlet pipe is communicated with the water tank;

[0008] Inner groove, the inner groove is opened in the rotating shaft, through holes are opened on the outer wall of the rotating shaft, the through holes are communicated with the through holes on the water storage tank, spray nozzles I and II are opened on the outer wall of the rotating shaft, the output shaft of the motor drives the rotating shaft to rotate. Since the water storage tank is stationary, the through holes on the rotating shaft can be alternately communicated with the through holes of the water storage tank, so that the water in the water storage tank enters the inner groove of the rotating shaft, and then is sprayed out through spray nozzles I and II. With the rotation of the rotating shaft, the preliminary removal of impurities in the waste gas is realized. And through the use of the spiral pipe, the waste gas can enter the pretreatment box in a spiral shape. After the impurities in the waste gas are condensed by water, they are easily thrown out under the action of centrifugal force, which is convenient for removing the impurities in the waste gas.

[0009] Preferably, spray nozzle I is located above filter element I, and spray nozzle II is located below filter element II.

[0010] Preferably, both filter element I and filter element II are composed of a filter net, a support ring and an elastic telescopic rod. The support ring is fixed in the inner wall of the pretreatment box, and the filter net is connected to the support ring through the elastic telescopic rod.

[0011] Preferably, a fixing ring is fixedly connected to the outer wall of the rotating shaft. A cylinder is fixedly connected to the upper side of the fixing ring. The fixing ring is penetrated by a vertical rod and is slidably connected to the vertical rod. A round rod is fixedly connected to the vertical rod. The round rod is slidably connected in the straight slot of swing rod I. Swing rod I is hinged on support frame I. Support frame I is fixedly connected to the fixing ring. The end of swing rod I away from the round rod is fixedly connected with elastic ball I.

[0012] Preferably, balls are installed at the top of the cylinder and at the upper and lower ends of the vertical rod. The ball at the top of the vertical rod abuts against the lower side of the filter net of filter element I.

[0013] Preferably, a notch ring is fixedly installed on the lower side of the filter net of filter element I. The ball at the top of the cylinder abuts against the notch ring. In this way, when the rotating shaft drives the fixing ring to rotate, the ball at the top of the cylinder moves under the notch ring. Since the fixing ring is stationary, the notch ring is under extrusion, so that the filter net of filter element I can move up and down to achieve a shaking effect, reduce the adhesion of impurities on filter element I, and prevent its filter net from being blocked.

[0014] Preferably, the anti-clogging mechanism includes a connecting shaft rotatably connected to the bottom of the rotating shaft. A ratchet is fixedly connected to the bottom of the rotating shaft, and a ratchet pawl is engaged with the ratchet. The ratchet pawl is fixedly connected to the connecting shaft. A sliding disk is slidably connected to the outer wall of the connecting shaft, and a fixed disk is fixedly connected to the outer wall of the connecting shaft. An auxiliary dredging component is arranged below the sliding disk. A cleaning brush is fixedly connected to the bottom of the connecting shaft. A second swing rod is hinged to the lower side of the sliding disk. A straight notch is formed in the second swing rod, and the hinge shaft of the sliding disk and the second swing rod can slide in the straight notch. The second swing rod is hinged to a second bracket. An elastic ball two is fixedly connected to the bottom of the second swing rod. By using the ratchet and the ratchet pawl, the connecting shaft can only rotate in one direction. Thus, when the filter screen of the second filter element needs to be cleaned, the output shaft of the motor drives the rotating shaft to rotate clockwise. Due to the limiting effect of the ratchet pawl, the connecting shaft rotates clockwise, and the cleaning brush moves to clean the filter screen of the second filter element. When the filter screen does not need to be cleaned, the output shaft of the motor rotates counterclockwise, which will not affect the spraying of water flow.

[0015] Preferably, the auxiliary dredging component includes an air chamber. A piston ring is piston-connected in the air chamber. A support rod is fixedly connected to the top of the piston ring and is fixed to the sliding disk. The piston ring is elastically connected to the inner wall of the air chamber through a return spring. The air chamber is communicated with an air pipe. One end of the air pipe far away from the air chamber is communicated with a one-way nozzle. The air chamber is communicated with a one-way air inlet. Since the filter screen of the first filter element moves up and down, the vertical rod is squeezed. Then the vertical rod squeezes the sliding disk. Under the action of the return spring, the support rod and the piston ring move up and down, driving the sliding disk to move up and down. Then the second swing rod swings. The elastic ball two knocks and vibrates the filter screen of the second filter element to prevent the filter screen of the second filter element from being clogged. Moreover, during the up and down movement of the vertical rod, the round rod moves up and down, driving the first swing rod to swing, so that the elastic ball one knocks and vibrates the filter screen of the first filter element to prevent the filter screen of the first filter element from being clogged. During the up and down movement of the piston ring, the gas in the air chamber realizes the functions of discharging and inhaling air. The gas in the air chamber can enter the one-way nozzle through the air pipe and be sprayed out to further prevent the filter screen of the second filter element from being clogged.

[0016] Preferably, a discharge port is formed on the outer wall of the pretreatment tank and is communicated with the collection tank. The collection tank is detachably connected to the outer wall of the pretreatment tank. A waste discharge port is fixedly connected to the bottom of the filter screen of the second filter element, and a solenoid valve is arranged on the waste discharge port.

[0017] Preferably, the pretreatment tank, the acid liquid spray tower, the alkali liquid spray tower, the condensation filter tank, the adsorption tank and the combustion emission chamber are all communicated through pipelines.

[0018] The present invention provides a coking waste gas treatment device, which has the following beneficial effects:

[0019] (1) In this coking waste gas treatment device, a rotating liquid spraying mechanism and a spiral tube are arranged in the pretreatment tank. The motor drives the rotation of the rotating shaft, causing the water in the water tank to be sprayed out through the water spraying ports. In cooperation with the rotation of the rotating shaft, the waste gas impurities are washed. The spiral tube allows the waste gas to enter in a spiral shape. After the impurities condense with water, they are easily thrown out under the action of centrifugal force. Through the filtering effects of filter element 1 and filter element 2, the removal efficiency of impurities in the waste gas is greatly improved, the subsequent treatment burden is reduced, and at the same time, it is convenient for the centralized treatment of impurities and reduces the impurity content in the subsequent recycled water, reducing the cost of subsequent recycled water treatment.

[0020] (2) Through the combined use of the rotating liquid spraying mechanism and the anti-blocking mechanism in this coking waste gas treatment device, the rotation of the rotating shaft drives the fixed ring, causing the ball at the top of the cylinder to move under the notch ring, prompting the filter mesh of filter element 1 to vibrate up and down, reducing the adhesion of impurities; the ratchet and the pawl cooperate to drive the cleaning brush to clean the filter mesh of filter element 2 when needed; the movement of the filter mesh of filter element 1 will also squeeze the vertical rod, driving the sliding disk and the swing rod, causing the elastic ball to strike the filter mesh of the filter element, effectively preventing the blockage of filter element 1 and filter element 2 and ensuring the continuous and stable operation of the device.

[0021] (3) Through the use of the auxiliary dredging component in this coking waste gas treatment device, during the up and down movement of the piston ring, the gas in the air chamber realizes the functions of air outlet and air intake. The gas in the air chamber can enter the one-way nozzle through the air pipe and be sprayed out to blow the impurities on the filter mesh 2, further preventing the blockage of the filter mesh of filter element 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

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

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

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

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

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of Structure A in the present invention;

[0028] Figure 6 Schematic diagram of the anti-blocking mechanism structure of the present invention;

[0029] Figure 7 Partial sectional view structure schematic diagram of the anti-blocking mechanism of the present invention;

[0030] Figure 8 Partial structure schematic diagram of the anti-blocking mechanism of the present invention;

[0031] Figure 9 Partial structure schematic diagram of the notch ring and the filter element of the present invention;

[0032] Figure 10 Internal sectional view structure schematic diagram of the pretreatment tank of the present invention;

[0033] Figure 11 For the present invention Figure 10 Schematic diagram of Structure B in the present invention.

[0034] Explanation of the reference numerals in the drawings:

[0035] 1. Pretreatment tank; 2. First filter element; 3. Second filter element; 4. Spiral tube; 5. Rotary liquid spraying mechanism; 6. Anti-blocking mechanism; 7. Acid liquid spraying tower; 8. Alkali liquid spraying tower; 9. Condensation and filtration tank; 10. Adsorption tank; 11. Combustion emission chamber; 101. Discharge port; 21. Notch ring; 31. Impurity discharge port; 51. Motor; 52. Rotating shaft; 53. Circular plate; 54. Water storage tank; 55. Water inlet pipe; 56. Fixed ring; 57. Cylinder; 58. Vertical rod; 59. Round rod; 510. First swing rod; 511. First support; 512. First elastic ball; 521. Inner groove; 522. Water passing hole; 523. First water spraying port; 524. Second water spraying port; 61. Connecting shaft; 62. Ratchet; 63. Sliding disk; 64. Fixed disk; 65. Auxiliary dredging component; 66. Cleaning brush; 67. Second support; 68. Second swing rod; 69. Second elastic ball; 611. Pawl; 651. Air chamber; 652. Piston ring; 653. Support rod; 654. Air pipe; 655. Unidirectional spray head.

[0036] The realization, functional characteristics and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the drawings. Specific embodiments

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1 - 11 , the present invention provides a coking waste gas treatment device, which includes a pretreatment tank 1, an acid liquid spray tower 7, an alkali liquid spray tower 8, a condensation and filtration tank 9, an adsorption tank 10 and a combustion emission chamber 11. The pretreatment tank 1, the acid liquid spray tower 7, the alkali liquid spray tower 8, the condensation and filtration tank 9, the adsorption tank 10 and the combustion emission chamber 11 are all connected through pipelines. The impurities initially contained in the waste gas are removed by the pretreatment tank 1, the acid-base impurities are removed and the waste gas is neutralized by the acid liquid spray tower 7 and the alkali liquid spray tower 8, the waste gas is condensed and filtered by the condensation and filtration tank 9 to remove the impurities and liquid in the gas, the harmful gases in the waste gas are adsorbed by the adsorption tank 10, and the treated gas is combusted and emitted by the combustion emission chamber 11. A first filter element 2 and a second filter element 3 are arranged in the pretreatment tank 1, a spiral pipe 4 is fixedly installed in the pretreatment tank 1, a rotating liquid spraying mechanism 5 for initially removing the waste gas impurities is arranged in the pretreatment tank 1, and a clogging prevention mechanism 6 is arranged below the rotating liquid spraying mechanism 5.

[0039] In an embodiment of the present invention, the rotary liquid spraying mechanism 5 includes a motor 51, a water inlet pipe 55 and an inner groove 521. A rotating shaft 52 is fixedly connected to the output shaft of the motor 51. A circular plate 53 is rotatably connected to the outer wall of the rotating shaft 52 through a bearing. A water storage tank 54 is fixedly installed on the circular plate 53. The water inlet pipe 55 is communicated with the water storage tank 54. The inner groove 521 is opened in the rotating shaft 52. A water passing hole 522 is opened on the outer wall of the rotating shaft 52. The water passing hole 522 is communicated with the through hole on the water storage tank 54. A first water spraying port 523 and a second water spraying port 524 are opened on the outer wall of the rotating shaft 52. The first water spraying port 523 is located above the first filter element 2, and the second water spraying port 524 is located below the second filter element 3. By driving the rotating shaft 52 to rotate through the output shaft of the motor 51, since the water storage tank 54 is stationary, the water passing hole 522 on the rotating shaft 52 can be alternately communicated with the through hole of the water storage tank 54. Then, the water in the water storage tank 54 enters the inner groove 521 of the rotating shaft 52 and is ejected through the first water spraying port 523 and the second water spraying port 524. In cooperation with the rotation of the rotating shaft 52, the preliminary removal of impurities in the waste gas is realized. And by using the spiral pipe 4, the waste gas can enter the pretreatment tank 1 in a spiral shape. After the impurities in the waste gas are condensed by water, they are easily thrown out under the action of centrifugal force, which is convenient for removing the impurities in the waste gas, greatly improves the removal efficiency of the impurities in the waste gas, reduces the subsequent treatment burden. At the same time, under the action of the first filter element 2 and the second filter element 3, the water flow can be separated from the impurities, which is convenient for the centralized treatment of the impurities and reduces the impurity content in the subsequent recycled water, reducing the cost of subsequent recycled water treatment.

[0040] Further, both the first filter element 2 and the second filter element 3 are composed of a filter net, a support ring and an elastic telescopic rod. The support ring is fixed in the inner wall of the pretreatment tank 1. The filter net is connected to the support ring through the elastic telescopic rod. In this way, the filter nets of the first filter element 2 and the second filter element 3 can move up and down to a certain extent.

[0041] Further, 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 in the straight groove of the first swing rod 510. The first swing rod 510 is hinged to the first bracket 511. The first bracket 511 is fixedly connected to the fixing ring 56. An elastic ball 512 is fixedly connected to the end of the first swing rod 510 away from the round rod 59. Ball bearings are installed at the top of the cylinder 57 and at the upper and lower ends of the vertical rod 58. The ball bearing at the top of the vertical rod 58 abuts against the lower side of the filter net of the first filter element 2. A notch ring 21 is fixedly installed on the lower side of the filter net of the first filter element 2. The ball bearing at the top of the cylinder 57 abuts against the notch ring 21. During the process of the rotating shaft 52 driving the fixing ring 56 to rotate, the ball bearing at the top of the cylinder 57 moves under the notch ring 21. Since the fixing ring 56 does not move, the notch ring 21 is subjected to a squeezing effect, so that the filter net of the first filter element 2 can move up and down, achieving a shaking effect, reducing the attachment of impurities to the filter net of the first filter element 2, and preventing its filter net from being blocked.

[0042] Further, the anti-blocking mechanism 6 includes a connecting shaft 61. The connecting shaft 61 is rotatably connected to the bottom of the rotating shaft 52. A ratchet 62 is fixedly connected to the bottom of the rotating shaft 52. The ratchet 62 is engaged with a pawl 611. 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. A fixed disk 64 is fixedly connected to the outer wall of the connecting shaft 61. An auxiliary dredging assembly 65 is arranged below the sliding disk 63. A cleaning brush 66 is fixedly connected to the bottom of the connecting shaft 61. The lower side of the sliding disk 63 is hinged to a second swing rod 68. A straight groove is formed in the second swing rod 68, and the hinge shaft of the sliding disk 63 and the second swing rod 68 can slide in the straight groove. The second swing rod 68 is hinged to a second bracket 67. An elastic ball 69 is fixedly connected to the bottom of the second swing rod 68. By using the ratchet 62 and the pawl 611, the connecting shaft 61 can only rotate in one direction. Thus, when the filter net of the second filter element 3 needs to be cleaned, the output shaft of the motor 51 drives the rotating shaft 52 to rotate clockwise. Due to the limiting effect of the pawl 611, the connecting shaft 61 rotates clockwise, and the cleaning brush 66 moves to clean the filter net of the second filter element 3. When the filter net does not need to be cleaned, the output shaft of the motor 51 rotates counterclockwise, which will not affect the spraying of water flow, and thus ensures the preliminary removal of impurities in the waste gas.

[0043] Further, the auxiliary dredging component 65 includes an air chamber 651. A piston ring 652 is connected to the piston in the air chamber 651. 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 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. A one-way air inlet is communicated with the air chamber 651. During the up and down movement of the filter net of the first filter element 2, the vertical rod 58 is squeezed. Then the vertical rod 58 squeezes the sliding disc 63. With the cooperation 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 outlet and air inlet. The air inlet is that the gas enters from the one-way air inlet, and the air outlet 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 net of the second filter element 3 from being blocked.

[0044] It should be noted that during the up and down movement of the vertical rod 58, the round rod 59 moves up and down. The round rod 59 slides in the straight groove of the first swing rod 510, thereby driving the first swing rod 510 to swing, so that the first elastic ball 512 knocks and vibrates the filter net of the first filter element 2 to prevent the filter net of the first filter element 2 from being blocked. At the same time, during the up and down movement of the sliding disc 63, the second swing rod 68 is driven to swing, and the second elastic ball 69 knocks and vibrates the filter net of the second filter element 3 to prevent the filter net of the second filter element 3 from being blocked.

[0045] Further, a discharge port 101 is opened on the outer wall of the pretreatment tank 1. The discharge port 101 is communicated with the collection tank. The collection tank is detachably connected to the outer wall of the pretreatment tank 1. A waste discharge port 31 is fixedly connected to the bottom of the filter net of the second filter element 3. An electromagnetic valve is arranged on the waste discharge port 31. Both the discharge port 101 and the waste discharge port 31 are used to discharge the condensed impurities. Among them, a liquid discharge port is also opened at the bottom of the pretreatment tank 1. Through the use of the liquid discharge port, the water flow can be discharged.

[0046] It should be noted that the above electrical components are all existing technical products. Those skilled in the art select, install and complete the circuit debugging operations according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or parts known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or through conventional experimental methods, and no specific limitations are made here.

[0047] During use, the waste gas enters the pretreatment tank 1 through the spiral pipe 4. The output shaft of the motor 51 is started to drive the rotating shaft 52 to rotate. Since the water storage tank 54 does not move, the water passing holes 522 on the rotating shaft 52 can be staggered and communicated with the through holes of the water storage tank 54. Then, the water in the water storage tank 54 enters the inner groove 521 of the rotating shaft 52 and is ejected through the first water spraying port 523 and the second water spraying port 524. Cooperating with the rotation of the rotating shaft 52, the impurities in the waste gas are preliminarily removed. Since the waste gas spirally enters the pretreatment tank 1, after the impurities in the waste gas condense when encountering water, they are easily thrown out under the action of centrifugal force, and the impurities in the waste gas are preliminarily removed.

[0048] At the same time, during the process of the rotating shaft 52 driving the fixed ring 56 to rotate, the balls at the top of the cylinder 57 move under the lower side of the notch ring 21. Since the fixed ring 56 does not move, the notch ring 21 is subjected to extrusion, so that the filter net of the first filter element 2 can move up and down, realizing a shaking effect and reducing the adhesion of impurities on the filter net of the first filter element 2. When it is necessary to clean the filter net of the second filter element 3, the output shaft of the motor 51 is started to drive the rotating shaft 52 to rotate clockwise. Due to the limiting action of the ratchet pawl 611, the connecting shaft 61 rotates clockwise, and the cleaning brush 66 moves to realize the cleaning of the filter net of the second filter element 3.

[0049] At the same time, during the process of the filter net of the first filter element 2 moving up and down, the vertical rod 58 is extruded. Then, the vertical rod 58 extrudes the sliding disk 63. Cooperating with the action of the return spring, the support rod 653 and the piston ring 652 move up and down, and the gas in the air chamber 651 realizes the functions of air intake and air outlet. The air intake is that the gas enters from the one-way air inlet, and the air outlet is that the gas in the air chamber 651 enters the one-way spray head 655 through the air pipe 654 and is ejected, assisting in cleaning the filter net of the second filter element 3.

[0050] At the same time, during 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 groove of the first swing rod 510, thereby driving the first swing rod 510 to swing, so that the first elastic ball 512 knocks and vibrates the filter net of the first filter element 2 to prevent the filter net of the first filter element 2 from being blocked. At the same time, during the process of the sliding disk 63 moving up and down, it drives the second swing rod 68 to swing, and the second elastic ball 69 knocks and vibrates the filter net of the second filter element 3 to prevent the filter net of the second filter element 3 from being blocked.

[0051] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A coking waste gas treatment device, comprising a pretreatment tank (1), an acid solution spray tower (7), an alkali solution spray tower (8), a condensation and filtration tank (9), an adsorption tank (10) and a combustion emission chamber (11), characterized in that: A filter element one (2) and a filter element two (3) are arranged in the pretreatment box (1). A spiral pipe (4) is fixedly installed in the pretreatment box (1). A rotary liquid spraying mechanism (5) for preliminarily removing waste gas impurities is arranged in the pretreatment box (1). A clogging prevention mechanism (6) is arranged below the rotary liquid spraying mechanism (5). The rotary liquid spraying mechanism (5) includes: A motor (51), a rotating shaft (52) is fixedly connected to the output shaft of the motor (51). A circular plate (53) is rotatably connected to the outer wall of the rotating shaft (52) through a bearing. A water storage tank (54) is fixedly installed on the circular plate (53); A water inlet pipe (55), the water inlet pipe (55) is communicated with the water storage tank (54); An inner groove (521), the inner groove (521) is opened in the rotating shaft (52). A water passing hole (522) is opened on the outer wall of the rotating shaft (52). The water passing hole (522) is communicated with the through hole on the water storage tank (54). A water spraying port one (523) and a water spraying port two (524) are opened on the outer wall of the rotating shaft (52).

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

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

4. A 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 with the vertical rod (58). A round rod (59) is fixedly connected to the vertical rod (58). The round rod (59) is slidably connected in the straight groove 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 to the fixing ring (56). One end of the swing rod one (510) far away from the round rod (59) is fixedly connected with an elastic ball one (512).

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 the upper and lower ends of the vertical rod (58). The ball bearing at the top of the vertical rod (58) abuts against the lower side of the filter net of the filter element one (2).

6. The coking waste gas treatment device according to claim 4, characterized in that: A notch ring (21) is fixedly installed on the lower side of the filter net of the filter element one (2). The ball bearing at the top of the cylinder (57) abuts against the notch ring (21).

7. The coking waste gas treatment device according to claim 1, characterized in that: The anti-blocking mechanism (6) includes a connecting shaft (61). The connecting shaft (61) is rotatably connected to the bottom of the rotating shaft (52). A ratchet wheel (62) is fixedly connected to the bottom of the rotating shaft (52). The ratchet wheel (62) is engaged with a pawl (611). The pawl (611) is fixedly connected to the connecting shaft (61). A sliding disc (63) is slidably connected to the outer wall of the connecting shaft (61). A fixed disc (64) is fixedly connected to the outer wall of the connecting shaft (61). An auxiliary dredging assembly (65) is arranged below the sliding disc (63). A cleaning brush (66) is fixedly connected to the bottom of the connecting shaft (61). A second swing rod (68) is hinged to the lower side of the sliding disc (63). A straight slot is formed in the second swing rod (68), and the hinge shaft of the sliding disc (63) and the second swing rod (68) can slide in the straight slot. The second swing rod (68) is hinged to a second support (67). An elastic ball two (69) is fixedly connected to the bottom of the second swing rod (68).

8. An apparatus for treating coking waste gas according to claim 7, characterized in that: The auxiliary dredging assembly (65) includes an air chamber (651). A piston ring (652) is piston-connected in the air chamber (651). 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) through a return spring. The air chamber (651) is communicated with an air pipe (654). One end of the air pipe (654) far away from the air chamber (651) is communicated with a one-way nozzle (655). A one-way air inlet is communicated with the air chamber (651).

9. The coking waste gas treatment device according to claim 3, characterized in that: A discharge port (101) is formed in the outer wall of the pretreatment tank (1). The discharge port (101) is communicated with a collection box. The collection box is detachably connected to the outer wall of the pretreatment tank (1). A waste discharge port (31) is fixedly connected to the bottom of the filter net of the second filter element (3). An electromagnetic valve is arranged on the waste discharge port (31).

10. A coking waste gas treatment device according to claim 1, characterized in that: The pretreatment tank (1), the acid solution spraying tower (7), the alkali solution spraying tower (8), the condensation and filtration tank (9), the adsorption tank (10) and the combustion emission chamber (11) are all communicated through pipelines.

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