A combined exhaust gas purification device

Abstract

The invention provides a combined exhaust gas purification device, which relates to the field of exhaust gas purification, and comprises: a treatment machine maintenance door, a guide transmission rod, a height adjustment screw rod, a locking operation handle, a position detection block, a positioning pressure block and a battery; the treatment machine maintenance door is hinged on the front side of the treatment machine sealing shell; the guide transmission rod is rotatably connected to the front side of the treatment machine sealing shell; the height adjustment screw rod is rotatably connected to the left and right sides of the treatment machine maintenance door; the locking operation handle is rotatably connected to the front side of the treatment machine maintenance door; the position detection block is slidably connected to the front side of the treatment machine sealing shell; the positioning pressure block is slidably connected to the front side of the treatment machine sealing shell; the battery is bolted to the front side of the treatment machine sealing shell; the invention can remind the staff whether the maintenance door is closed properly, thereby avoiding the exhaust gas leakage of the purification device during operation, and solving the problem that the exhaust gas leakage of the purification device during operation is caused by easy operation errors when closing the maintenance door.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas purification, and in particular to a combined waste gas purification device. Background Art

[0002] Domestic and industrial waste gas needs to be treated by purification equipment before it can be discharged back into the outside world to avoid environmental pollution. When treating the waste gas, the waste gas will pass through the coarse and medium efficiency filter chamber, heating chamber, spray chamber, high efficiency filter chamber, etc. in turn. The impurities and harmful substances in the waste gas are treated through the combination of multiple treatment chambers. Most purification devices are equipped with inspection doors to facilitate staff to enter the purification device for maintenance.

[0003] For example, CN102814098B discloses a multi-stage combined exhaust gas purification device, in which the exhaust gas suction device A introduces the exhaust gas into the spray device B, and then introduces the exhaust gas into the cyclone collector C through the spray, and the cyclone collector C transfers the exhaust gas and the liquid miscible substance into the reflux pipe K and the liquid pool J; the air duct C4 of the cyclone collector C is connected to the induced draft fan D; further: the outlet of the air duct of the induced draft fan D is connected to the water filter device G, the water filter device G introduces the separated liquid into the reflux pipe K, and the reflux pipe K leads to the liquid pool J; the outlet of the air duct of the induced draft fan D is connected to the cyclone collector F, the cyclone collector F transfers the exhaust gas and the liquid miscible substance into the reflux pipe K and the liquid pool J; the air duct F4 of the cyclone collector F is connected to the water filter device G, the water filter device G introduces the separated liquid into the reflux pipe K and the liquid pool J; the water filter device G is the other end of the double-layer hollow U-shaped tube, and is also connected to an activated carbon purification device. The beneficial effects of the present invention are: it can treat various industrial waste gases; the combined design can be used flexibly; the waste gas treatment efficiency is high and the purification effect is good.

[0004] However, when closing the existing inspection doors, most of them are positioned by rotating the door handle to make the limit plate fit into the limit groove. It is easy for the door handle to not be rotated into place due to operating errors of the staff. At this time, a gap is easy to appear between the inspection door and the purification device, causing exhaust gas leakage in the purification device during operation, affecting the use effect of the purification device. Summary of the invention

[0005] In view of this, the present invention provides a combined exhaust gas purification device, which can automatically clean the treatment machine observation window, facilitate observation of the interior of the purification device, and remind the staff whether the inspection door is closed properly, thereby avoiding the situation where the door handle is not rotated into place due to operational errors of the staff, avoiding the appearance of a gap between the inspection door and the purification device, ensuring the tightness of the inspection door and the purification device, avoiding exhaust gas leakage during operation of the purification device, and ensuring the use effect of the purification device.

[0006] The present invention provides a purpose and effect of a combined exhaust gas purification device, which specifically includes: a sealed shell of a processor, a processor inspection door, a guide transmission rod, a height adjustment screw rod, a cleaning structure, a locking operation handle, a position detection block, a positioning pressure block, a detection structure and a battery; the processor inspection door is provided in plurality, and the plurality of processor inspection doors are evenly distributed and hinged on the front side of the processor sealed shell; the guide transmission rod is provided in plurality, and the plurality of guide transmission rods are evenly distributed and rotatably connected to the front side of the processor sealed shell; the height adjustment screw rod is provided in plurality, and the plurality of height adjustment screw rods are respectively rotatably connected to the left and right sides of the plurality of processor inspection doors. side; the cleaning structure is arranged on the front side of the sealed shell of the processor; the locking operation handles are provided in plurality, and the plurality of locking operation handles are rotatably connected to the front sides of the plurality of processor inspection doors respectively; the position detection blocks are provided in plurality, and the plurality of position detection blocks are evenly distributed and slidably connected to the front side of the sealed shell of the processor; the positioning pressure blocks are provided in plurality, and the plurality of positioning pressure blocks are evenly distributed and slidably connected to the front side of the sealed shell of the processor; the detection structure is provided on the front side of the sealed shell of the processor; the batteries are provided in plurality, and the plurality of batteries are evenly distributed and bolted to the front side of the sealed shell of the processor.

[0007] Furthermore, the detection structure includes a position adjustment push plate and a first reset elastic member; a plurality of the position adjustment push plates are provided, and the plurality of the position adjustment push plates are evenly distributed and slidably connected to the front side of the processor sealing shell back and forth; a plurality of the first reset elastic members are provided, and the plurality of the position adjustment push plates are elastically connected to the processor sealing shell through the plurality of the first reset elastic members.

[0008] Furthermore, the detection structure also includes a position adjustment rack and a position limiting lever; there are multiple position adjustment racks, and the multiple position adjustment racks are evenly distributed left and right and slidably connected to the front side of the processor sealing shell; there are multiple position limiting levers, and the multiple position limiting levers are respectively fixedly connected to the front end surfaces of the multiple position adjustment racks.

[0009] Furthermore, the detection structure also includes a position limiting baffle and a second reset elastic member; a plurality of the position limiting baffles are provided, and the plurality of the position limiting baffles are respectively rotatably connected to the rear sides of the plurality of the position detection blocks, and the plurality of the position limiting baffles are all connected to the sealed housing of the processor for sliding up and down; a plurality of the second reset elastic members are provided, and the plurality of the position limiting baffles are elastically connected to the sealed housing of the processor through the plurality of the second reset elastic members.

[0010] Furthermore, the detection structure also includes a guide connecting rod and a positioning extrusion block; there are multiple guide connecting rods, and the multiple guide connecting rods are respectively fixedly connected to the upper end surfaces of the multiple position limiting baffles; there are multiple positioning extrusion blocks, and the multiple positioning extrusion blocks are respectively fixedly connected to the upper end surfaces of the multiple guide connecting rods.

[0011] Furthermore, the detection structure also includes a power-on metal block and a third reset elastic member; there are multiple power-on metal blocks, and the multiple power-on metal blocks are respectively fixedly connected to the left sides of the multiple positioning pressure blocks; there are multiple third reset elastic members, and the multiple positioning pressure blocks are elastically connected to the processing machine sealing shell through the multiple third reset elastic members, and the elastic force of the third reset elastic member is smaller than that of the second reset elastic member.

[0012] Furthermore, the detection structure also includes a power transmission gear and a position fixing hole; there are multiple power transmission gears, and the multiple power transmission gears are respectively fixedly connected to the rear sides of the multiple position detection blocks; there are multiple position fixing holes, and the multiple position fixing holes are respectively opened on the front sides of the multiple position detection blocks.

[0013] Furthermore, the detection structure also includes a power transmission line, a detection warning light and a metal contact block; a plurality of the power transmission lines are provided, and the plurality of the power transmission lines are electrically connected to the positive and negative electrodes of the plurality of batteries respectively; a plurality of the metal contact blocks are provided, and the plurality of the metal contact blocks below are electrically connected to the front sides of the plurality of the power transmission lines below respectively; a plurality of the detection warning lights are provided, and the plurality of the detection warning lights are evenly distributed and bolted to the front side of the sealed housing of the processor, and the positive pins of the plurality of the detection warning lights are electrically connected to the plurality of the power transmission lines above respectively, and the negative pins of the plurality of the detection warning lights are electrically connected to the plurality of the metal contact blocks above respectively.

[0014] Furthermore, the cleaning structure includes a processor observation window and a power transmission fan; a plurality of processor observation windows are provided, and the plurality of processor observation windows are respectively provided in the middle of the plurality of processor maintenance doors; a plurality of power transmission fans are provided, and the plurality of power transmission fans are respectively fixedly connected to the rear sides of the plurality of guide transmission rods, and the plurality of guide transmission rods are respectively connected to the height adjustment screws on the right sides of the plurality of processor maintenance doors through springs.

[0015] Furthermore, the cleaning structure also includes a synchronous transmission structure, a first magnetic cleaning brush and a second magnetic cleaning brush; the synchronous transmission structure is a synchronous belt transmission structure, and a plurality of the synchronous transmission structures are provided, and the height adjustment screws on both sides of each of the processing machine maintenance doors are connected through a synchronous transmission structure; a plurality of the first magnetic cleaning brushes are provided, and a plurality of the first magnetic cleaning brushes are respectively threadedly connected to the outer sides of the height adjustment screws on both sides of the plurality of processing machine maintenance doors; a plurality of the second magnetic cleaning brushes are provided, and a plurality of the second magnetic cleaning brushes are adsorbed in front of the plurality of the first magnetic cleaning brushes.

[0016] Beneficial Effects

[0017] The present invention automatically cleans the processing machine observation window by the first magnetic cleaning brush and the second magnetic cleaning brush, thereby keeping the processing machine observation window clean, facilitating observation of the interior of the purification device, ensuring the observation effect of the internal situation of the purification device, and avoiding the inconvenience of manually cleaning the processing machine observation window, and controlling the start state of the detection warning light by positioning the movement of the pressure block, and reminding the staff whether the inspection door is closed through the position fixing hole and the detection warning light, avoiding the situation that the door handle is not rotated into place due to the staff's operating error, avoiding the occurrence of a gap between the inspection door and the purification device, ensuring the tightness of the inspection door and the purification device, avoiding the leakage of exhaust gas from the purification device when working, and ensuring the use effect of the purification device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the installation position of the guide transmission rod of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the processing machine maintenance door of the present invention.

[0024] Figure 4 It is a schematic diagram of the installation position of the height adjustment screw rod of the present invention.

[0025] Figure 5 The present invention Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0026] Figure 6 It is a schematic diagram of the positional relationship between the locking operating handle and the position detection block of the present invention.

[0027] Figure 7 It is a schematic diagram of the positional relationship between the positioning extrusion block and the positioning pressure block of the present invention.

[0028] Figure 8 It is a schematic diagram of the position relationship between the position limiting baffle and the position adjusting push plate of the present invention.

[0029] Fig. 9 It is a schematic diagram of the positional relationship between the positioning pressure block and the battery of the present invention.

[0030] Reference numerals list

[0031] 1. Processor sealed housing; 101. Position adjustment push plate; 102. First reset elastic member; 103. Position adjustment rack; 104. Position limiting lever; 2. Processor maintenance door; 201. Processor observation window; 3. Guide transmission rod; 301. Power transmission fan; 4. Height adjustment screw; 401. Synchronous transmission structure; 402. First magnetic cleaning brush; 403. Second magnetic cleaning brush; 5. Locking operation handle; 6. Position detection block; 601. Position limiting baffle; 602. Second reset elastic member; 603. Guide connecting rod; 604. Positioning extrusion block; 605. Power transmission gear; 606. Position fixing hole; 7. Positioning pressure block; 701. Power connection metal block; 702. Third reset elastic member; 8. Battery; 801. Power transmission line; 802. Detection warning light; 803. Metal contact block. DETAILED DESCRIPTION

[0032] Example 1: Please refer to Figures 1 to 6 As shown:

[0033] The present invention provides a combined exhaust gas purification device, comprising a processor sealed shell 1, a processor maintenance door 2, a guide transmission rod 3, a height adjustment screw rod 4 and a cleaning structure; a plurality of processor maintenance doors 2 are provided, and the plurality of processor maintenance doors 2 are evenly distributed and hinged on the front side of the processor sealed shell 1; a plurality of guide transmission rods 3 are provided, and the plurality of guide transmission rods 3 are evenly distributed and rotatably connected to the front side of the processor sealed shell 1; a plurality of height adjustment screw rods 4 are provided, and the plurality of height adjustment screw rods 4 are respectively rotatably connected to the left and right sides of the plurality of processor maintenance doors 2; the cleaning structure is provided on the front side of the processor sealed shell 1.

[0034] Among them, the cleaning structure includes a processor observation window 201 and a power transmission fan 301; a plurality of processor observation windows 201 are provided, and the plurality of processor observation windows 201 are respectively arranged in the middle of a plurality of processor maintenance doors 2; a plurality of power transmission fans 301 are provided, and the plurality of power transmission fans 301 are respectively fixedly connected to the rear sides of a plurality of guide transmission rods 3, and the plurality of guide transmission rods 3 are respectively connected to the height adjustment screw rods 4 on the right side of the plurality of processor maintenance doors 2 through springs.

[0035] Among them, the cleaning structure also includes a synchronous transmission structure 401, a first magnetic cleaning brush 402 and a second magnetic cleaning brush 403; the synchronous transmission structure 401 is a synchronous belt transmission structure, and a plurality of synchronous transmission structures 401 are provided, and the height adjustment screw rods 4 on both sides of each processing machine maintenance door 2 are connected through a synchronous transmission structure 401; a plurality of first magnetic cleaning brushes 402 are provided, and the plurality of first magnetic cleaning brushes 402 are respectively threadedly connected to the outer sides of the height adjustment screw rods 4 on both sides of the plurality of processing machine maintenance doors 2; a plurality of second magnetic cleaning brushes 403 are provided, and the plurality of second magnetic cleaning brushes 403 are adsorbed in front of the plurality of first magnetic cleaning brushes 402.

[0036] Specific usage and function of this embodiment: When the combined exhaust gas purification device treats the exhaust gas, the exhaust gas is first introduced into the medium-efficiency filter chamber for filtering, and then the harmful substances in the exhaust gas are cleaned through a heat exchanger and a sprayer. After the cleaning is completed, the exhaust gas is transferred by a fan to allow the exhaust gas to enter the high-efficiency filter chamber for further filtration. The internal situation of the purification device is observed through the treatment machine observation window 201. During the flow of exhaust gas, the power transmission fan 301 and the guide transmission rod 3 are driven to rotate. When the guide transmission rod 3 rotates, the height adjustment screw rod 4 is driven to rotate through the spring. The synchronous transmission structure 401 can make multiple height adjustment screw rods 4 rotate at the same time. When the height adjustment screw rod 4 rotates, it will drive the first magnetic cleaning brush 402 to move. When the first magnetic cleaning brush 402 moves, it will drive the second magnetic cleaning brush 403 to slide on the other side of the treatment machine observation window 201 under the attraction of the magnetic force to clean the treatment machine observation window 201.

[0037] Example 2: Please refer to Figures 6 to 9 As shown:

[0038] On the basis of the first embodiment, it also includes a locking operation handle 5, a position detection block 6, a positioning pressure block 7, a detection structure and a battery 8; a plurality of locking operation handles 5 are provided, and the plurality of locking operation handles 5 are respectively rotatably connected to the front side of a plurality of processor maintenance doors 2; a plurality of position detection blocks 6 are provided, and the plurality of position detection blocks 6 are evenly distributed and slidably connected to the front side of the processor sealed shell 1; a plurality of positioning pressure blocks 7 are provided, and the plurality of positioning pressure blocks 7 are evenly distributed and slidably connected to the front side of the processor sealed shell 1; the detection structure is provided on the front side of the processor sealed shell 1; a plurality of batteries 8 are provided, and the plurality of batteries 8 are evenly distributed and bolted to the front side of the processor sealed shell 1.

[0039] Among them, the detection structure includes a position adjustment push plate 101 and a first reset elastic member 102; a plurality of position adjustment push plates 101 are provided, and the plurality of position adjustment push plates 101 are evenly distributed and slidably connected to the front side of the processor sealed shell 1 back and forth; a plurality of first reset elastic members 102 are provided, and the plurality of position adjustment push plates 101 are elastically connected to the processor sealed shell 1 through the plurality of first reset elastic members 102.

[0040] Among them, the detection structure also includes a position adjustment rack 103 and a position limiting lever 104; a plurality of position adjustment racks 103 are provided, and the plurality of position adjustment racks 103 are evenly distributed and slidably connected to the front side of the processor sealing shell 1; a plurality of position limiting levers 104 are provided, and the plurality of position limiting levers 104 are respectively fixedly connected to the front end surfaces of the plurality of position adjustment racks 103.

[0041] Among them, the detection structure also includes a position limiting baffle 601 and a second reset elastic member 602; a plurality of position limiting baffles 601 are provided, and the plurality of position limiting baffles 601 are respectively rotatably connected to the rear sides of the plurality of position detection blocks 6, and the plurality of position limiting baffles 601 are all connected to the processor sealed housing 1 for upward and downward sliding; a plurality of second reset elastic members 602 are provided, and the plurality of position limiting baffles 601 are elastically connected to the processor sealed housing 1 through the plurality of second reset elastic members 602.

[0042] Among them, the detection structure also includes a guide connecting rod 603 and a positioning extrusion block 604; a plurality of guide connecting rods 603 are provided, and the plurality of guide connecting rods 603 are respectively fixedly connected to the upper end surfaces of the plurality of position limiting baffles 601; a plurality of positioning extrusion blocks 604 are provided, and the plurality of positioning extrusion blocks 604 are respectively fixedly connected to the upper end surfaces of the plurality of guide connecting rods 603.

[0043] Among them, the detection structure also includes a power-connected metal block 701 and a third reset elastic member 702; a plurality of power-connected metal blocks 701 are provided, and the plurality of power-connected metal blocks 701 are respectively fixedly connected to the left sides of the plurality of positioning pressure blocks 7; a plurality of third reset elastic members 702 are provided, and the plurality of positioning pressure blocks 7 are elastically connected to the sealed housing 1 of the processor through the plurality of third reset elastic members 702, and the elastic force of the third reset elastic member 702 is smaller than that of the second reset elastic member 602.

[0044] Among them, the detection structure also includes a power transmission gear 605 and a position fixing hole 606; a plurality of power transmission gears 605 are provided, and the plurality of power transmission gears 605 are respectively fixedly connected to the rear sides of the plurality of position detection blocks 6; a plurality of position fixing holes 606 are provided, and the plurality of position fixing holes 606 are respectively opened on the front sides of the plurality of position detection blocks 6.

[0045] Among them, the detection structure also includes a power transmission line 801, a detection warning light 802 and a metal contact block 803; a plurality of power transmission lines 801 are provided, and the plurality of power transmission lines 801 are electrically connected to the positive and negative electrodes of the plurality of batteries 8 respectively; a plurality of metal contact blocks 803 are provided, and the plurality of metal contact blocks 803 below are electrically connected to the front sides of the plurality of power transmission lines 801 below respectively; a plurality of detection warning lights 802 are provided, and the plurality of detection warning lights 802 are evenly distributed and bolted to the front side of the sealed housing 1 of the processor, and the positive pins of the plurality of detection warning lights 802 are electrically connected to the plurality of power transmission lines 801 above respectively, and the negative pins of the plurality of detection warning lights 802 are electrically connected to the plurality of metal contact blocks 803 above respectively.

[0046] Specific usage and function of this embodiment: When the combined exhaust gas purification device needs to be repaired, the staff needs to first pull down the position detection block 6 to make the locking operation handle 5 disengage from the position fixing hole 606. At this time, the position adjustment push plate 101 pushes the position limiting baffle 601 and the position detection block 6 to the rear side under the action of the first reset elastic member 102, so that the power transmission gear 605 is meshed with the position adjustment rack 103. At this time, the position detection block 6 is rotated downward to make the power transmission gear 605 push the position adjustment rack 103 The position detection block 6 is fixed by the position limiting baffle 601, and the position limiting baffle 601 moves downward, so that the position limiting baffle 601 is blocked above the position detection block 6, and the position of the position detection block 6 is fixed. When the position limiting baffle 601 moves downward, the guide connecting rod 603 and the positioning extrusion block 604 are driven to move downward. At this time, the positioning pressure block 7 is no longer squeezed, and the third reset elastic member 702 pushes the positioning pressure block 7 and the power connection metal block 701 to reset, so that the power connection metal block 701 contacts the metal contact block 803. At this time, the power transmission line 801 will transfer the electricity in the battery 8 to the metal contact block 803. The force is transmitted to the detection warning light 802 to make the detection warning light 802 light up, thereby reminding the staff that the processing machine maintenance door 2 is not closed properly. When the maintenance is completed and the processing machine maintenance door 2 needs to be closed, the processing machine maintenance door 2 is closed normally first, and then the position detection block 6 is rotated in the reverse direction. At this time, the position limit lever 104 returns to its original position, and the position detection block 6 is pulled forward, so that the power transmission gear 605 is no longer engaged with the position adjustment rack 103. At this time, the second reset elastic member 602 can drive the rotation position detection block 6 and the position limit baffle 601 to reset. If If the locking operating handle 5 is just inserted into the position fixing hole 606, it means that the processor maintenance door 2 has been closed. At this time, the positioning extrusion block 604 will squeeze the positioning pressure block 7, so that the power-connected metal block 701 no longer contacts the metal contact block 803. At this time, the detection warning light 802 is powered off. If the locking operating handle 5 cannot be inserted into the position fixing hole 606, it means that the processor maintenance door 2 is not closed. At this time, the positioning extrusion block 604 cannot contact the positioning pressure block 7, and the locking operating handle 5 needs to be twisted again until the processor maintenance door 2 is closed.

[0047] In this article, there are a few points to note:

[0048] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0049] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0050] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A combined exhaust gas purification device, comprising: The processor sealing shell, the processor maintenance door, the locking operation handle, the position detection block, the positioning pressure block, the detection structure and the battery; the processor maintenance door is hinged on the front side of the processor sealing shell; it is characterized in that the locking operation handle is rotatably connected to the front side of the processor maintenance door; the position detection block is slidably connected to the front side of the processor sealing shell up and down; the positioning pressure block is slidably connected to the front side of the processor sealing shell left and right; the detection structure is arranged on the front side of the processor sealing shell; the battery is bolted to the front side of the processor sealing shell; the detection structure includes a position adjustment push plate, a first reset elastic member, a position adjustment rack, a position limiting gear lever, a position limiting baffle, a second reset elastic member, a guide connecting rod, a positioning extrusion block, a power connection metal block, a third reset elastic member, a power transmission gear, a position fixing hole, a power transmission line, a detection warning light and a metal contact block; the position adjustment push plate is passed through the first The reset elastic member is elastically connected to the processor sealing shell; the position adjustment rack is slidably connected to the front side of the processor sealing shell left and right; the position limiting lever is fixedly connected to the front end face of the position adjustment rack; the position limiting baffle is rotatably connected to the rear side of the position detection block and is slidably connected to the processor sealing shell up and down; the position limiting baffle is elastically connected to the processor sealing shell through the second reset elastic member; the positioning extrusion block is fixedly connected to the upper end face of the position limiting baffle through the guide connecting rod; the power connection metal block is fixedly connected to the left side of the positioning pressure block; the positioning pressure block is elastically connected to the processor sealing shell through the third reset elastic member; the power transmission gear is fixedly connected to the rear side of the position detection block; the position fixing hole is opened on the front side of the position detection block; the battery, the metal contact block and the detection warning light are electrically connected through the power transmission line.

2. A combined exhaust gas purification device as claimed in claim 1, characterized in that: A plurality of guide transmission rods are provided, and the plurality of guide transmission rods are evenly distributed and rotatably connected to the front side of the sealed housing of the processing machine; a plurality of height adjustment screw rods are provided, and the plurality of height adjustment screw rods are respectively rotatably connected to the left and right sides of the plurality of processing machine inspection doors; a cleaning structure is provided on the front side of the sealed housing of the processing machine.

3. A combined exhaust gas purification device as claimed in claim 2, characterized in that: The cleaning structure includes a processor observation window and a power transmission fan; there are multiple processor observation windows, and the multiple processor observation windows are respectively arranged in the middle of the multiple processor maintenance doors; there are multiple power transmission fans, and the multiple power transmission fans are respectively fixedly connected to the rear sides of the multiple guide transmission rods, and the multiple guide transmission rods are respectively connected to the height adjustment screws on the right sides of the multiple processor maintenance doors through springs.

4. A combined exhaust gas purification device as claimed in claim 2, characterized in that: The cleaning structure also includes a synchronous transmission structure, a first magnetic cleaning brush and a second magnetic cleaning brush; the synchronous transmission structure is a synchronous belt transmission structure, and a plurality of the synchronous transmission structures are provided, and the height adjustment screws on both sides of each of the processing machine maintenance doors are transmission connected through a synchronous transmission structure; a plurality of the first magnetic cleaning brushes are provided, and a plurality of the first magnetic cleaning brushes are respectively threadedly connected to the outer sides of the height adjustment screws on both sides of the plurality of processing machine maintenance doors; a plurality of the second magnetic cleaning brushes are provided, and a plurality of the second magnetic cleaning brushes are adsorbed in front of the plurality of the first magnetic cleaning brushes.

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