Coke oven flue gas emission purification device with multiple chambers

Abstract

The invention relates to the technical field of coke oven flue gas treatment, in particular to a coke oven flue gas emission purification device with multiple bins, which comprises a purification outer frame, a purification inner frame and a bottom frame, the purification inner frame is fixedly mounted in the center of the purification outer frame, and a mesh plate is embedded in the inner wall of the bottom of the purification outer frame and located on the periphery of the purification inner frame; the bottom frame is fixedly installed at the bottom end of the purification outer frame through four sets of vertical rods, the top of the purification inner frame extends to the flush position of a frame body of the top face of the purification outer frame, an air inlet pipe is arranged in the center of the top face of the purification inner frame, and a pretreatment mechanism is arranged in the purification inner frame; according to the flue gas purification device, the purification treatment efficiency of the flue gas is effectively improved by preliminarily removing fine particulate matters in the flue gas and carrying out pretreatment operation of auxiliary cooling, on the basis, the pretreated flue gas is subjected to secondary purification treatment, and the flue gas purification efficiency is further improved by prolonging the gas-liquid contact time and forcing the gas to fully react.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coke oven flue gas treatment, in particular to a coke oven flue gas emission purification device with multiple chambers. BACKGROUND

[0002] As the core equipment of the metallurgical industry, coke ovens produce a large amount of high-temperature, high-concentration dust-containing flue gas during the coking process. The pollutants in these flue gases are complex and mainly include particulate matter, sulfur dioxide (SO2), nitrogen oxides (NOx), carbon monoxide (CO), and volatile organic compounds (VOCs).

[0003] According to statistics from the environmental protection department, a single large coke oven can emit up to 10 8 cubic meters of flue gas per year, with particulate matter concentration usually exceeding 50 mg / m 3 , and SO2 concentration reaching 300-800 mg / m 3 , far exceeding the limit requirements of the "Coking Chemical Industry Pollutant Emission Standard" (GB16171-2012). Therefore, it is particularly necessary to purify the coke oven flue gas.

[0004] According to the coke oven flue gas purification and emission device with patent number CN218687288U, the air guide plate is used to force the flue gas to contact the surface of the demisting plate. The flue gas adheres to the surface of the demisting plate and flows into the flue gas purification base box under the action of gravity.

[0005] Although the above-mentioned device can purify the flue gas, due to the lack of preliminary treatment of the coke oven flue gas, it is easy to cause poor purification effect. The initially emitted flue gas has a high temperature and carries a large amount of fine particulate matter. If it is directly purified by flow guiding, not only will it cause high-temperature damage to the flow guide plate and other equipment, but also it will easily cause excessive tar particles to adhere to the surface of the flow guide plate after long-term use, thereby affecting the flow guiding and purification efficiency of the flue gas. SUMMARY

[0006] The purpose of the present application is to effectively improve the purification efficiency of the flue gas by preliminarily removing the fine particulate matter in the flue gas and performing a preliminary treatment operation of auxiliary cooling. On this basis, the flue gas after preliminary treatment is subjected to secondary purification treatment, the gas-liquid contact time is prolonged, and the gas is forced to fully react, thereby further improving the flue gas purification efficiency.

[0007] The purpose of the present application can be achieved by the following technical solution: a coke oven flue gas emission purification device with multiple chambers, comprising a purification outer frame, a purification inner frame, and a bottom frame, the purification inner frame is fixedly installed at the center inside the purification outer frame, and a mesh plate is embedded at the inner wall of the bottom of the purification outer frame around the purification inner frame, the bottom frame is fixedly installed at the bottom end of the purification outer frame through four groups of vertical rods.

[0008] The top of the purification inner frame extends to the flush top surface of the purification outer frame, and an air inlet pipe is arranged at the center of the top surface of the purification inner frame. The interior of the purification inner frame is provided with a pretreatment mechanism, and the interior of the purification outer frame and the four sides of the purification inner frame are respectively provided with secondary treatment mechanisms.

[0009] The pretreatment mechanism includes four groups of limiting cylinders, which are arranged in a rectangular array on the inner wall of the purification inner frame. Each group of limiting cylinders is provided with a gas filtering conduit.

[0010] Further, the top frame of the bottom frame is provided with a mesh plate, and the aperture of the mesh plate at the bottom frame is smaller than the aperture of the mesh plate at the purification outer frame by 2 cm. The bottom of the bottom frame is provided with a liquid discharge pipe.

[0011] Further, one end of the gas filtering conduit extends to the outside of the purification inner frame, and an exhaust hole is arranged on one side of the gas filtering conduit at the end extending outside. A mesh surface is arranged at one end of the gas filtering conduit outside the purification inner frame. Each group of gas filtering conduits is fixedly installed with a circular shaft at the top surface and at the end of the mesh surface. Four groups of circular shafts are movably arranged with a rotating disc outside.

[0012] Further, the bottom surface of the rotating disc is hinged to the inner wall of the bottom of the purification inner frame through a fixedly installed rotating rod. Tapered blades are fixedly installed at the front and rear ends and both sides of the rotating disc. The interior of the tapered blade is provided with a long slot. The bottom end of each group of circular shafts is respectively sleeved in the corresponding long slot. A half-toothed disc is fixedly installed at the center of the top of the rotating disc.

[0013] Further, the pretreatment mechanism further includes a motor one, which is arranged at the top inner wall of the purification inner frame and at the side of the smoke inlet pipe. A fan-shaped fan is fixedly installed at the bottom output end of the motor one. A limiting gear is fixedly installed at the top of the fan-shaped fan through a vertical rod. The limiting gear is engaged with the half-toothed disc.

[0014] Further, the secondary treatment mechanism includes a reaction inclined pipe, which is arranged at the inner wall of one side of the purification outer frame through two groups of sleeve frames. The higher end of the reaction inclined pipe is provided with a liquid inlet pipe, and the lower end of the reaction inclined pipe is provided with a discharge valve pipe. The front and rear end surfaces of the reaction inclined pipe at the shorter end are provided with a sliding groove. The end of the gas filtering conduit extending outside penetrates the sliding groove and extends to the interior of the reaction inclined pipe.

[0015] Further, a gear slot group is arranged at the center of the top surface of the reaction inclined pipe. A fan-shaped toothed piece is movably arranged at the top end of the reaction inclined pipe. The bottom of the fan-shaped toothed piece is engaged with the gear slot group on the surface of the reaction inclined pipe. A lifting rod is fixedly installed at the top end of the fan-shaped toothed piece. The rear end of the lifting rod is hinged to the corresponding inner side wall of the purification outer frame through a fixedly installed connecting rod. The end of the connecting rod away from the lifting rod extends to the outside of the purification outer frame and is fixedly installed with a steering gear.

[0016] Further, the secondary treatment mechanism further comprises a rectangular sliding frame sleeved on the outside of the purification outer frame, vertical grooves are arranged at the front and rear ends and the centers of the two sides of the rectangular sliding frame, a gear set is arranged on one side of the inner wall of the vertical groove, a steering gear extends into the corresponding inner wall of the vertical groove and is meshed with the corresponding gear, and a cylinder is arranged at the front end of the purification outer frame through the machine base through the push rod at the bottom of the rectangular sliding frame.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] 1、The present application is through the setting pretreatment mechanism, flue gas into the purification inner frame through the air inlet pipe, motor one drive fan-shaped fan produces radial airflow, dispersed flue gas through filter gas duct for primary filtration, particulate matter is intercepted in the outer layer of the mesh, reverse fan-shaped fan drive half tooth disc, drive the disc intermittent rotation, conical blade traction filter gas duct generates axial displacement, realize the mesh surface self-cleaning, this structure not only can effectively filter the fine particulate matter in the flue gas, and the flue gas is appropriately cooled, improve the flue gas treatment efficiency, and reduce the damage to the equipment.

[0019] 2、The present application is also through the setting secondary treatment mechanism, flue gas into the reaction inclined pipe through the filter gas duct, and the counter-current contact with the quantitative injection of absorption liquid, the cylinder drives the rectangular sliding frame reciprocating motion, through the rack, gear set drives the reaction inclined pipe periodic oblique reciprocating motion, strengthens the gas-liquid reaction effect and prolongs the gas-liquid contact time, effectively improves the flue gas treatment efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to facilitate those skilled in the art to understand, the present application is further described below with reference to the drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 It is a bottom view of the purification inner frame of the present application;

[0023] Figure 3 It is a bottom view of the overall structure of the present application;

[0024] Figure 4 It is a half-section schematic diagram of the combination of the purification outer frame and the purification inner frame of the present application;

[0025] Figure 5 It is a sectional view of the purification outer frame of the present application;

[0026] Figure 6 It is a plane schematic diagram of the overall structure of the present application.

[0027] In the figure: 1, purification outer frame; 2, purification inner frame; 3, bottom frame; 4, pretreatment mechanism; 41, limiting cylinder; 42, filter gas guide pipe; 43, circular shaft; 44, rotating disc; 45, conical blade; 46, half-toothed disc; 47, motor I; 48, fan-shaped fan; 49, limiting gear; 5, secondary treatment mechanism; 51, reaction inclined pipe; 52, fan-shaped toothed piece; 53, lifting rod; 54, steering gear; 55, rectangular sliding frame; 56, vertical groove; 57, air cylinder. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Embodiment one: please refer to Figures 1-4 As shown, the coke oven flue gas emission purification device with multiple chambers comprises a purification outer frame 1, a purification inner frame 2, and a bottom frame 3. The purification inner frame 2 is fixedly installed at the inner center of the purification outer frame 1. The inner wall of the bottom of the purification outer frame 1 is embedded with a mesh plate around the purification inner frame 2. The bottom frame 3 is fixedly installed at the bottom end of the purification outer frame 1 through four groups of vertical rods.

[0030] The top opening of the bottom frame 3 is provided with a mesh plate, and the aperture of the mesh plate of the bottom frame 3 is 2 cm smaller than that of the mesh plate of the purification outer frame 1. The bottom of the bottom frame 3 is provided with a liquid discharge pipe. The top of the purification inner frame 2 extends to the top surface of the purification outer frame 1. The top center of the purification inner frame 2 is provided with an air inlet pipe. The inside of the purification inner frame 2 is provided with a pretreatment mechanism 4.

[0031] The pretreatment mechanism 4 comprises four groups of limiting cylinders 41, which are arranged in a rectangular array on the inner wall of the purification inner frame 2. Each group of limiting cylinders 41 is provided with a filter gas guide pipe 42 penetrating through the inside. One end of the filter gas guide pipe 42 extends to the outside of the purification inner frame 2. An exhaust hole is provided on one side of the filter gas guide pipe 42 at the end extending outside. The outside of the filter gas guide pipe 42 is provided with a mesh surface at one end inside the purification inner frame 2. Each group of filter gas guide pipes 42 is fixedly installed with a circular shaft 43 on the top surface at the end of the mesh surface. Four groups of circular shafts 43 are jointly and movably provided with a rotating disc 44 outside.

[0032] The bottom surface of the rotating disc 44 is hinged to the bottom inner wall of the purification inner frame 2 through a fixedly installed rotating rod. Conical blades 45 are fixedly installed on the front and rear ends and both sides of the rotating disc 44. The inside of each conical blade 45 is provided with a long groove. The bottom end of each circular shaft 43 is respectively sleeved in the corresponding long groove. The top center of the rotating disc 44 is fixedly installed with a half-toothed disc 46.

[0033] The pretreatment mechanism 4 further comprises a motor 47 arranged on the inner wall of the top of the purification inner frame 2 and located at one side of the smoke inlet pipe, and a fan-shaped fan 48 is fixedly installed at the bottom output end of the motor 47, and the top of the fan-shaped fan 48 is fixedly installed with a limiting gear 49 through a vertical rod, and the limiting gear 49 is engaged with the half-toothed disc 46;

[0034] Pretreatment stage: first, the flue gas is introduced into the inside of the purification inner frame 2 through the air inlet pipe, then the motor 47 is started to drive the fan-shaped fan 48 to start rotating, and the fan-shaped fan 48 disperses and cools the introduced flue gas;

[0035] When the flue gas is dispersed and cooled, the gas will enter the inner cavity of the filter gas guide pipe 42 through the mesh surface of the several groups of filter gas guide pipes 42, and be guided through the cavity, and finally be discharged into the corresponding secondary treatment mechanism 5 for further treatment, in this process, the particulate matter carried in the gas will be blocked outside the filter gas guide pipe 42, so as to realize the pretreatment of the flue gas.

[0036] After the uniform discharge of the flue gas is completed, the motor 47 is started again to drive the fan-shaped fan 48 and the limiting gear 49 to rotate clockwise, at this time, the limiting gear 49 is engaged with the half-toothed disc 46, and the rotation of the half-toothed disc 46 drives the rotating disc 44 and the several groups of conical blades 45 to rotate counterclockwise intermittently;

[0037] During the rotation process, each group of conical blades 45 will drag the corresponding circular shaft 43 and filter gas guide pipe 42 to move, until the mesh surface end of the filter gas guide pipe 42 is inserted into the inside of the corresponding limiting cylinder 41, and the inner wall of the limiting cylinder 41 and the outer mesh surface of the filter gas guide pipe 42 are rubbed with each other, so as to realize the simple cleaning of the mesh surface of the filter gas guide pipe 42, which helps to timely remove the particulate matter stuck on the mesh surface, prevent blockage, and reduce the problem of affecting the gas filtering efficiency of the mesh surface of the filter gas guide pipe 42 due to blockage.

[0038] Example two: please refer to Figure 3 - Figure 6 As shown, and the inside of the purification outer frame 1 and located at the four around the purification inner frame 2 are respectively provided with a secondary treatment mechanism 5, the secondary treatment mechanism 5 comprises a reaction inclined pipe 51, the reaction inclined pipe 51 is arranged at one side of the inner wall of the purification outer frame 1 through two groups of sleeve frames, the higher end of the reaction inclined pipe 51 is provided with a liquid inlet pipe, and the lower end of the reaction inclined pipe 51 is provided with a discharge valve pipe, the front and rear end faces of the reaction inclined pipe 51 are located at the shorter end and are respectively provided with a chute, and one end of the filter gas guide pipe 42 extending outside penetrates through the chute and extends into the inside of the reaction inclined pipe 51;

[0039] The deep purification stage: the preliminary purified flue gas enters the inside of the reaction inclined pipe 51 through the filter pipe 42, and the inside of the reaction inclined pipe 51 is previously added with the reaction solution through the liquid inlet pipe, the gas reacts with the solution, and the gas is further purified, after a period of reaction, the reaction product is discharged downward through the discharge valve pipe, and penetrates through the bottom net of the purification outer frame 1 and penetrates into the inside of the bottom frame 3, and the solid-liquid separation is realized through the filter of the net plate in the inside of the bottom frame 3;

[0040] The top surface of the reaction inclined pipe 51 is provided with a set of gear grooves, the top end of the reaction inclined pipe 51 is movably provided with a fan-shaped tooth piece 52, the bottom of the fan-shaped tooth piece 52 is engaged with the gear groove set on the surface of the reaction inclined pipe 51, the top end of the fan-shaped tooth piece 52 is fixedly provided with a lifting rod 53, and the rear end center of the lifting rod 53 is hingedly connected to the inner side wall of the corresponding purification outer frame 1 through a fixedly installed connecting rod, and the end of the connecting rod away from the lifting rod 53 extends to the outside of the purification outer frame 1 and is fixedly installed with a steering gear 54;

[0041] The secondary treatment mechanism 5 further comprises a rectangular sliding frame 55 which is slidably sleeved on the outside of the purification outer frame 1, and the front and rear ends and the two side centers of the rectangular sliding frame 55 are provided with vertical grooves 56, one side of the vertical groove 56 is provided with a set of teeth, and the steering gear 54 extends into the inner wall of the corresponding vertical groove 56 and is engaged with the corresponding teeth, and the bottom of the rectangular sliding frame 55 is provided with a gas cylinder 57 through a push rod, and the gas cylinder 57 is arranged at the front end position of the purification outer frame 1 through a machine base;

[0042] At the same time of the gas-liquid reaction, the gas cylinder 57 drives the rectangular sliding frame 55 to slide downward along the outer wall of the purification outer frame 1 through the push rod, the sliding of the rectangular sliding frame 55 drives the steering gear 54 to move along the inner wall of the corresponding vertical groove 56, the movement of the steering gear 54 and the engagement with the teeth set on the inner wall of the corresponding vertical groove 56 drive the connecting rod and the lifting rod 53 to rotate counterclockwise, the rotation of the lifting rod 53 drives the fan-shaped tooth piece 52 to rotate, and the rotation of the fan-shaped tooth piece 52 drives the reaction inclined pipe 51 to move downward along the sleeve frame through the engagement with the gear groove set on the surface of the reaction inclined pipe 51;

[0043] Conversely, when the rectangular sliding frame 55 slides upward along the outer wall of the purification outer frame 1, the fan-shaped tooth piece 52 rotates reversely to realize the reset movement of the reaction inclined pipe 51; in this way, the reaction inclined pipe 51 is reciprocated to force the liquid in the inside of the reaction inclined pipe 51 to fully mix and react with the introduced gas, and the gas-liquid contact time is increased to force the reaction rate to increase.

[0044] Working principle: in use, first, the flue gas is introduced into the inside of the purification inner frame 2 through the air inlet pipe, then the flue gas is pretreated, the motor one 47 drives the fan-shaped fan 48 to start rotating, the fan-shaped fan 48 disperses and cools the imported flue gas; when the flue gas is dispersed and cooled, the gas enters the inner cavity of the filter gas guide pipe 42 through the mesh surface of the filter gas guide pipe 42, the particulate matter carried in the gas is blocked outside the filter gas guide pipe 42, and the filtered gas is guided through the cavity and finally discharged into the corresponding secondary treatment mechanism 5 for further treatment.

[0045] After the uniform emission of flue gas is completed, the motor one 47 is started again to drive the fan-shaped fan 48 and the limit gear 49 to rotate clockwise, at this time, the limit gear 49 is engaged with the half-toothed disc 46, the rotation of the half-toothed disc 46 drives the rotating disc 44 and the plurality of groups of conical blades 45 to rotate counterclockwise intermittently; in the rotating process, each group of conical blades 45 will drag the corresponding circular shaft 43 and the filter gas guide pipe 42 to move, until the mesh surface end of the filter gas guide pipe 42 is inserted into the inside of the corresponding limit cylinder 41, the inner wall of the limit cylinder 41 and the outer mesh surface of the filter gas guide pipe 42 rub each other, so that the mesh surface of the filter gas guide pipe 42 is simply cleaned.

[0046] Deep purification stage: the flue gas preliminarily purified by the filter gas guide pipe 42 enters the inside of the reaction inclined pipe 51, and the reaction solution is added into the inside of the reaction inclined pipe 51 through the liquid inlet pipe in advance, the gas reacts with the solution, and the gas is further purified by the reaction.

[0047] After a period of reaction, the reactants are discharged downward through the discharge valve pipe, and penetrate the bottom mesh surface of the purification outer frame 1 and penetrate into the inside of the bottom frame 3 in turn, and are filtered through the mesh plate in the inside of the bottom frame 3 to realize solid-liquid separation.

[0048] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details, and the application is not limited to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The embodiments are selected and described in detail in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A coke oven flue gas emission purification device with multiple chambers, comprising a purification outer frame (1), a purification inner frame (2) and a bottom frame (3), characterized in that: The purification inner frame (2) is fixedly mounted at the inner center of the purification outer frame (1), and a mesh plate is embedded in the inner wall of the bottom of the purification outer frame (1) and located around the purification inner frame (2). The bottom frame (3) is fixedly mounted at the bottom end of the purification outer frame (1) through four sets of vertical rods. The top of the purification inner frame (2) extends to the same level as the top frame of the purification outer frame (1), and an air inlet pipe is provided at the center of the top surface of the purification inner frame (2). A pre-treatment mechanism (4) is provided inside the purification inner frame (2), and secondary treatment mechanisms (5) are provided inside the purification outer frame (1) and on the four sides of the purification inner frame (2). The pretreatment mechanism (4) comprises four groups of limiting cylinders (41), which are distributed in a rectangular array on the inner wall of the purification inner frame (2), and an air filter duct (42) is provided inside each group of limiting cylinders (41).

2. The coke oven flue gas emission purification device with multiple chambers according to claim 1, characterized in that: The top opening of the bottom frame (3) is provided with a mesh plate, and the aperture of the mesh plate at the bottom frame (3) is 1-2 cm smaller than the aperture of the mesh plate of the purification outer frame (1), and a drainage pipe is provided at the bottom of the bottom frame (3).

3. The coke oven flue gas emission purification device with multiple chambers according to claim 1, characterized in that: One end of the air filter duct (42) extends to the outside of the purification inner frame (2), and an exhaust hole is provided on one side of the air filter duct (42) at the end extending outside. A mesh surface is provided at the end of the air filter duct (42) located inside the purification inner frame (2). A circular shaft (43) is fixedly installed on the top surface of each group of the air filter ducts (42) and located at the end of the mesh surface. A rotating disk (44) is provided on the outside of the four groups of the circular shafts (43) so as to move together.

4. The coke oven flue gas emission purification device with multiple chambers according to claim 3, characterized in that: The bottom surface of the turntable (44) is hinged to the bottom inner wall of the purification inner frame (2) through a fixed rotating rod, and conical blades (45) are fixedly installed at the front and rear ends and both sides of the turntable (44). Long grooves are provided inside the conical blades (45), and the bottom ends of each group of circular shafts (43) are respectively sleeved inside the corresponding long grooves. A semi-toothed disc (46) is fixedly installed at the center of the top of the turntable (44).

5. The coke oven flue gas emission purification device with multiple chambers according to claim 1, characterized in that: The pretreatment mechanism (4) further comprises a motor (47), which is arranged on the top inner wall of the purification inner frame (2) and located on one side of the smoke inlet pipe, and a fan-shaped fan (48) is fixedly installed at the bottom output end of the motor (47), and a limit gear (49) is fixedly installed on the top of the fan-shaped fan (48) through a vertical rod, and the limit gear (49) is engaged with the half gear disc (46).

6. The coke oven flue gas emission purification device with multiple chambers according to claim 1, characterized in that: The secondary treatment mechanism (5) comprises a reaction inclined tube (51), which is arranged on the inner wall of one side of the purification outer frame (1) through two sets of frames, a liquid inlet pipe is arranged at the higher end of the reaction inclined tube (51), and a discharge valve pipe is arranged at the lower end of the reaction inclined tube (51), and the front and rear end surfaces of the reaction inclined tube (51) are both provided with a chute at the shorter end, and the end of the filter air conduit (42) extending outward passes through the chute and extends into the interior of the reaction inclined tube (51).

7. The coke oven flue gas emission purification device with multiple chambers according to claim 6, characterized in that: A tooth groove group is provided at the center of the top surface of the reaction inclined tube (51); a fan-shaped tooth piece (52) is movably provided at the top of the reaction inclined tube (51), and the bottom of the fan-shaped tooth piece (52) is engaged with the tooth groove group on the surface of the reaction inclined tube (51); a lifting rod (53) is fixedly installed at the top of the fan-shaped tooth piece (52), and a connecting rod is fixedly installed at the center of the rear end of the lifting rod (53) and is hinged to the inner wall of the corresponding purification outer frame (1); an end of the connecting rod away from the lifting rod (53) extends to the outside of the purification outer frame (1) and is fixedly installed with a steering gear (54).

8. The coke oven flue gas emission purification device with multiple chambers according to claim 1, characterized in that: The secondary processing mechanism (5) further comprises a rectangular sliding frame (55) slidably sleeved on the outside of the purification outer frame (1), and vertical grooves (56) are provided at the front and rear ends and the centers of both sides of the rectangular sliding frame (55), a tooth group is provided on the inner wall of one side of the vertical groove (56), and the steering gear (54) extends to the inner wall of the corresponding vertical groove (56) and meshes with the corresponding tooth group, and a cylinder (57) is provided at the bottom of the rectangular sliding frame (55) through a push rod, and the cylinder (57) is provided at the front end position of the purification outer frame (1) through a machine base.

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