Tail gas treatment and purification equipment for annealing furnace

Abstract

The annealing furnace tail gas treatment and purification equipment comprises a purification box and supporting legs, a pair of filter screens is fixedly connected to the right side of the interior of the purification box, brushes are attached to the outer walls of the inner sides of the filter screens, and first transverse plates are fixedly connected to the inner sides of the left brush and the right brush; a first transverse plate is arranged on the outer side of the first transverse plate, a second transverse plate fixedly connected with the purifying box is arranged below the first transverse plate, a purifying mechanism is installed on the outer side of the first transverse plate, and a connecting mechanism is installed below the purifying box. According to the device, the output shaft of the motor can drive the screw rod to rotate in a reciprocating manner, so that the screw rod is matched with the vertical rod to drive the first transverse plate to move, the first transverse plate drives the brush to move on the filter screen, impurities on the filter screen are scraped off, and the impurities fall into the collection hopper through the opening in the lower part of the purification box; therefore, passing of the treated gas is not affected, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of annealing furnace tail gas treatment, in particular to annealing furnace tail gas treatment and purification equipment. Background Art

[0002] Annealing furnace is a kind of process treatment equipment used in industrial manufacturing. Annealing furnace will produce a large amount of exhaust gas during operation. The main component of the exhaust gas is non-methane total hydrocarbons, which is a harmful gas and will pollute the atmosphere. Therefore, the exhaust gas needs to be treated by purification equipment before being discharged.

[0003] For example, an annealing furnace corona tail gas treatment device with publication number CN218188856U includes a treatment tank, and adopts a structure in which a conical electrode and a round tube electrode are matched to make the contact range between the discharge point and the tail gas larger, and the electrolysis is more thorough. In addition, the tail gas treatment efficiency is increased and the effect is better through the use of a cyclone element and a conical electrode.

[0004] However, when the annealing furnace corona exhaust gas treatment equipment is in use, since there is no cleaning structure at the filter plate for blocking solid matter in the exhaust gas, after a period of use, the solid matter in the exhaust gas will adhere to the filter plate, thereby affecting the passage of the treated gas, thereby reducing the use effect of the purification equipment. At the same time, since the exhaust gas of the annealing furnace has a high temperature, directly discharging the annealing furnace exhaust gas into the treatment tank will cause a waste of heat energy, thereby having a low energy-saving and environmental protection effect. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an annealing furnace exhaust gas treatment and purification device, which solves the problem that the solid matter in the exhaust gas will adhere to the filter plate and affect the passage of the treated gas in the existing annealing furnace corona exhaust gas treatment equipment, and at the same time, since the exhaust gas of the annealing furnace has a high temperature, directly discharging the annealing furnace exhaust gas into the treatment tank will cause waste of heat energy and low energy saving and environmental protection effect.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: an annealing furnace exhaust gas treatment and purification equipment, including a purification box and legs, a pair of legs are fixedly connected at the bottom of the purification box, a pair of filter screens are fixedly connected to the right side of the inside of the purification box, the inner and outer walls of the filter screens are both fitted with brushes, and the inner sides of the left and right brushes are fixedly connected to a first horizontal plate, a second horizontal plate fixed to the purification box is provided below the first horizontal plate, a pair of vertical rods are fixedly connected to the purification box, and the outer walls of the vertical rods are gap-matched with the inner walls of the through holes of the first horizontal plate, a purification mechanism is installed on the outer side of the first horizontal plate, and a connecting mechanism is installed below the purification box.

[0007] Preferably, the purification mechanism includes a screw rod rotatably connected to the purification box and the second horizontal plate through a bearing, and the outer wall of the screw rod is connected to the internal thread of the first horizontal plate, an H-shaped plate fixedly connected to the purification box is provided above the screw rod, and a motor connected to the screw rod is fixedly connected inside the H-shaped plate, and an exhaust pipe and a collecting hopper fixed to the purification box are respectively provided on the right side and below the screw rod.

[0008] Preferably, a vertical plate is fixedly connected to the left interior of the purification box, a horizontal bar is fixedly connected to the vertical plate and the interior of the purification box, a conical electrode is fixedly connected to the right side of the horizontal bar, and a guide fan is rotatably connected to the middle outer wall of the horizontal bar.

[0009] Preferably, a circular tube electrode connected to the interior of the purification box is provided on the outer side of the conical electrode.

[0010] Preferably, the connecting mechanism includes an air inlet pipe and a water tank fixed to the lower left side and lower surface of the purification box, a third horizontal plate is fixed to the left side of the water tank, a pump body is fixed to the inside of the third horizontal plate, a water outlet and a water inlet of the pump body are respectively fixed to a first pipe and a second pipe, and the other ends of the first pipe and the second pipe are connected to the interior of the water tank, and the middle outer wall of the first pipe is wound and connected to the air inlet pipe.

[0011] Preferably, a pair of connecting pipes are fixedly connected to the right side of the water tank.

[0012] Beneficial Effects

[0013] The utility model provides an annealing furnace tail gas treatment and purification device, which has the following beneficial effects:

[0014] The air intake pipe can be connected to the exhaust of the annealing furnace, so that the exhaust gas of the annealing furnace is discharged into the purification box through the air intake pipe, and then the circular tube electrode and the conical electrode on the cross bar are energized to realize continuous purification of the exhaust gas, and then the impurities in the exhaust gas are intercepted by the filter screens on both sides, and finally the purified exhaust gas is discharged through the exhaust pipe. When the filter screen needs to be cleaned, the motor can be started so that the output shaft of the motor drives the screw to reciprocate, so that the screw and the vertical rod can drive the first cross plate to move, so that the first cross plate drives the brush to move on the filter screen, so as to scrape off the impurities on the filter screen, and make the impurities fall into the collecting hopper through the opening below the purification box, so as not to affect the passage of the treated gas, thereby improving the use effect of the purification equipment;

[0015] When the exhaust gas of the annealing furnace is discharged into the air inlet pipe, the pump body can be started to suck the water in the water tank through the second pipe, and then discharge it back to the water tank through the first pipe. At the same time, when the water flows in the first pipe wrapped around the outer wall of the exhaust pipe, it will take away the heat in the exhaust gas of the annealing furnace in the first pipe, thereby achieving waste heat recovery, thus avoiding the waste of heat energy, and thus achieving high energy-saving and environmental protection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a plan cross-sectional view of the utility model.

[0018] Figure 3 It is a partially enlarged schematic diagram of the utility model.

[0019] Figure 4 It is a partially enlarged schematic diagram of the utility model.

[0020] Figure 5 It is a partially enlarged schematic diagram of the utility model.

[0021] In the figure: 1. purification box; 2. support legs; 3. filter screen; 4. brush; 5. first horizontal plate; 6. second horizontal plate; 7. vertical rod; 8. screw; 9. H-shaped plate; 10. motor; 11. exhaust pipe; 12. collecting hopper; 13. vertical plate; 14. horizontal rod; 15. guide fan; 16. conical electrode; 17. circular tube electrode; 18. intake pipe; 19. water tank; 20. third horizontal plate; 21. pump body; 22. first pipeline; 23. second pipeline; 24. connecting pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides a technical solution: an annealing furnace tail gas treatment and purification equipment, including a purification box 1 and a leg 2, a pair of legs 2 are fixedly connected to the bottom of the purification box 1, a pair of filter screens 3 are fixedly connected to the right side of the inside of the purification box 1, the inner and outer walls of the filter screens 3 are both fitted with brushes 4, and the inner sides of the left and right brushes 4 are fixedly connected to a first horizontal plate 5, a second horizontal plate 6 fixed to the purification box 1 is provided below the first horizontal plate 5, a pair of vertical rods 7 are fixedly connected between the second horizontal plate 6 and the purification box 1, and the outer wall of the vertical rod 7 is gap-matched with the inner wall of the through hole of the first horizontal plate 5, a purification mechanism is installed on the outer side of the first horizontal plate 5, and a connecting mechanism is installed below the purification box 1;

[0024] Two filter screens can be set inside the purification box 1 to intercept and filter impurities in the annealing furnace exhaust gas. Two through holes are processed inside the first horizontal plate 5, and two vertical rods 7 are set at these through holes, so that the vertical rods 7 can limit the first horizontal plate 5.

[0025] This embodiment is further configured such that the purification mechanism includes a screw 8 rotatably connected to the purification box 1 and the second horizontal plate 6 through a bearing, and the outer wall of the screw 8 is connected to the internal thread of the first horizontal plate 5, an H-shaped plate 9 fixedly connected to the purification box 1 is provided above the screw 8, and a motor 10 connected to the screw 8 is fixedly connected to the inside of the H-shaped plate 9, and an exhaust pipe 11 and a collecting hopper 12 fixed to the purification box 1 are respectively provided on the right side and below the screw 8;

[0026] Four openings can be machined inside the lower part of the purification box 1, so that impurities can fall into the collecting hopper 12 through the openings to be collected.

[0027] This embodiment is further configured such that a vertical plate 13 is fixedly connected to the left interior of the purification box 1, a horizontal bar 14 is fixedly connected to the vertical plate 13 and the interior of the purification box 1, a conical electrode 16 is fixedly connected to the right side of the horizontal bar 14, and a guide fan 15 is rotatably connected to the middle outer wall of the horizontal bar 14;

[0028] An electric wire can be connected to the left side of the cross bar 14, so that the conical electrode 16 can be energized through the cross bar 14. A guide fan 15 is provided on the cross bar 14, so that the guide fan 15 can rotate under the impact of the annealing furnace exhaust gas introduced, and a plurality of through holes are processed inside the vertical plate 13, so that the annealing furnace exhaust gas can be evenly distributed into the purification box 1 through the through holes and the guide fan 15.

[0029] This embodiment is further configured such that a circular tube electrode 17 connected to the inside of the purification box 1 is provided on the outer side of the conical electrode 16;

[0030] An electric wire can be connected to the upper right end of the conical electrode 16 to achieve power supply, so that the arc breaks down at the conical electrode 16 and the circular tube electrode 17, and the airflow pushes the arc to rotate and move to the right end. When the arc moves to the top of the conical electrode 16, the arc is blown off by the airflow, and then an arc is formed again at the left end of the two poles. This cycle is repeated to achieve continuous purification of the exhaust gas. This is a prior art and can be fully implemented by those skilled in the art, so it will not be elaborated on.

[0031] The present embodiment is further configured such that the connection mechanism includes an air inlet pipe 18 and a water tank 19 fixedly connected to the lower left side and the lower surface of the purification box 1, a third transverse plate 20 is fixedly connected to the left side of the water tank 19, a pump body 21 is fixedly connected to the inside of the third transverse plate 20, a first pipe 22 and a second pipe 23 are fixedly connected to the water outlet and the water inlet of the pump body 21, respectively, and the other ends of the first pipe 22 and the second pipe 23 are both connected to the inside of the water tank 19, and the middle outer wall of the first pipe 22 is wound and connected to the air inlet pipe 18;

[0032] The first pipe 22 can be connected and wrapped around the outer wall of the air inlet pipe 18, so that when water flows through the first pipe 22, it will take away the heat in the annealing furnace exhaust gas in the first pipe 18 to achieve waste heat recovery, thus avoiding the waste of heat energy and achieving higher energy-saving and environmental protection effects.

[0033] This embodiment is further configured such that a pair of connecting pipes 24 are fixedly connected to the right side of the water tank 19;

[0034] The upper connecting pipe 24 can be filled with water, and the lower connecting pipe 24 can be drained, so that the use effect is better.

[0035] It is worth noting that the models of the electrical structures involved in this application can be selected according to user needs, and only need to meet the use requirements of this application. At the same time, the corresponding control circuits are all existing technologies and can be fully implemented by personnel in this field, so no further details will be given.

[0036] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.

[0037] Embodiment: When it is necessary to use this device, the external power supply and control circuit of each electrical structure can be connected, and then the air intake pipe 18 is connected to the exhaust of the annealing furnace. When the exhaust gas of the annealing furnace is discharged into the purification box 1 through the air intake pipe 18, the exhaust gas will drive the guide fan 15 to rotate, and then continue to float to the right through the several through holes of the vertical plate 13, so that the exhaust gas can be dispersed and evenly distributed in the purification box 1. At this time, the circular tube electrode 17 and the conical electrode 16 on the cross bar 14 are energized, so that the arc is broken down at the conical electrode 16 and the circular tube electrode 17, and the airflow drives the arc to rotate and move to the right end. When the arc moves to the top of the conical electrode 16, the arc is blown off by the airflow, and then The electric arc is formed at the left end of the two poles, and the cycle is repeated to achieve continuous purification of the exhaust gas, and then the impurities in the exhaust gas are intercepted by the filter screens 3 on both sides, and finally the purified exhaust gas is discharged through the exhaust pipe 11. When the filter screen 3 needs to be cleaned, the motor 10 can be started to make the output shaft of the motor 10 drive the screw 8 to reciprocate, so that the screw 8 can cooperate with the vertical rod 7 to drive the first horizontal plate 5 to move, so that the first horizontal plate 5 drives the brush 4 to move on the filter screen 3, so as to scrape off the impurities on the filter screen 3, and make the impurities fall into the collecting hopper 12 through the opening below the purification box 1, so as not to affect the passage of the treated gas, thereby improving the use effect of the purification equipment;

[0038] When the exhaust gas of the annealing furnace is discharged into the intake pipe 18, the pump body 21 can be started to allow the pump body 21 to suck out the water in the water tank 19 through the second pipe 23, and then discharge it back to the water tank 19 through the first pipe 22. At the same time, when the water flows in the first pipe 22 wrapped around the outer wall of the exhaust pipe 18, it will take away the heat in the exhaust gas of the annealing furnace in the first pipe 18, thereby achieving waste heat recovery, thereby avoiding the waste of heat energy, and thus achieving a higher energy-saving and environmental protection effect.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An annealing furnace tail gas treatment and purification device, comprising a purification box (1) and supporting legs (2), wherein a pair of supporting legs (2) are fixedly connected below the purification box (1), characterized in that: A pair of filter screens (3) are fixedly connected to the right side of the interior of the purification box (1), and brushes (4) are attached to the inner and outer walls of the filter screens (3). A first horizontal plate (5) is fixedly connected to the inner sides of the left and right brushes (4). A second horizontal plate (6) fixedly connected to the purification box (1) is provided below the first horizontal plate (5). A pair of vertical rods (7) are fixedly connected between the second horizontal plate (6) and the purification box (1), and the outer walls of the vertical rods (7) are gap-matched with the inner walls of the through holes of the first horizontal plate (5). A purification mechanism is installed on the outer side of the first horizontal plate (5), and a connecting mechanism is installed below the purification box (1).

2. The annealing furnace tail gas treatment and purification equipment according to claim 1 is characterized in that: The purification mechanism comprises a screw (8) rotatably connected to the purification box (1) and the second horizontal plate (6) via a bearing, and the outer wall of the screw (8) is connected to the internal thread of the first horizontal plate (5), an H-shaped plate (9) fixedly connected to the purification box (1) is provided above the screw (8), and a motor (10) connected to the screw (8) is fixedly connected to the interior of the H-shaped plate (9), and an exhaust pipe (11) and a collecting hopper (12) fixedly connected to the purification box (1) are respectively provided on the right side and the bottom of the screw (8).

3. The annealing furnace tail gas treatment and purification equipment according to claim 1, characterized in that: A vertical plate (13) is fixedly connected to the interior of the left side of the purification box (1), a horizontal bar (14) is fixedly connected to the vertical plate (13) and the interior of the purification box (1), and a conical electrode (16) is fixedly connected to the right side of the horizontal bar (14), and a guide fan (15) is rotatably connected to the middle outer wall of the horizontal bar (14).

4. The annealing furnace tail gas treatment and purification equipment according to claim 3 is characterized in that: A circular tube electrode (17) connected to the interior of the purification box (1) is provided on the outer side of the conical electrode (16).

5. The annealing furnace tail gas treatment and purification equipment according to claim 1, characterized in that: The connection mechanism comprises an air intake pipe (18) and a water tank (19) fixedly connected to the lower left side and the lower surface of the purification box (1); a third transverse plate (20) is fixedly connected to the left side of the water tank (19); a pump body (21) is fixedly connected to the interior of the third transverse plate (20); a water outlet and a water inlet of the pump body (21) are respectively fixedly connected to a first pipe (22) and a second pipe (23); the other ends of the first pipe (22) and the second pipe (23) are both connected to the interior of the water tank (19); and the middle outer wall of the first pipe (22) is wound and connected to the air intake pipe (18).

6. The annealing furnace tail gas treatment and purification equipment according to claim 5, characterized in that: A pair of connecting pipes (24) are fixedly connected to the right side of the water tank (19).

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