Waste gas guide structure for metal surface heat treatment equipment

Abstract

The utility model discloses a waste gas guide structure for metal surface heat treatment equipment, relates to the technical field of waste gas treatment, and aims to solve the technical problems that in the prior art, smoke or ash is possibly generated in the heat treatment process of metal, so that particulate matters are generated, the particulate matters are accumulated on a filter element, the filter element is blocked for a long time, and the service life of the filter element is prolonged. The waste gas treatment device comprises a flue, the inner wall of the flue is fixedly connected with a partition plate, a channel in the flue is divided into two parts by the partition plate, the outer wall of the flue is fixedly connected with a pretreatment box, and a guide pipe is arranged in the pretreatment box; one end of the guide pipe penetrates through the outer wall of the flue to the interior of the flue and is communicated with the interior of the divided lower side of the flue, and the other end of the guide pipe extends to the lower side of the pretreatment box. The metal heat treatment equipment has the advantages that the probability of filter element blockage is reduced, and the continuous heat treatment efficiency of the metal heat treatment equipment on metal is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment technical field more specifically, relate to a kind of waste gas guiding structure for metal surface heat treatment equipment. BACKGROUND

[0002] The reason that metal surface heat treatment equipment generates waste gas when treating metal mainly comes from chemical reaction and material characteristics. Under high temperature conditions, the metal surface reacts with oxygen in the air, which may generate oxides and release gas. In addition, some coating materials involved in the heat treatment process may decompose when heated, generating gaseous byproducts. In summary, these chemical changes and material reactions collectively cause the generation of waste gas, so appropriate measures need to be taken to handle and guide these waste gases during the heat treatment process to protect the environment and personal safety.

[0003] In the prior art, waste gas is usually guided through an air duct, and a filter element is arranged inside the air duct to treat the waste gas, so that the waste gas reaches the qualified standard for emission. However, since smoke or ash may be generated during the heat treatment of metal, particulate matter is generated, which accumulates on the filter element and causes blockage of the filter element over time, affecting the guiding and treatment effect of the waste gas. SUMMARY

[0004] The utility model aims at overcoming the shortcomings of the prior art, meeting the needs of reality, and providing a waste gas guiding structure for metal surface heat treatment equipment to solve the problem that smoke or ash may be generated during the heat treatment of metal, resulting in the generation of particulate matter, which accumulates on the filter element and causes blockage of the filter element over time, affecting the guiding and treatment effect of the waste gas.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a waste gas guiding structure for metal surface heat treatment equipment, comprising a flue, a partition plate is fixedly connected to the inner wall of the flue, the partition plate divides the channel inside the flue into two parts, a pretreatment box is fixedly connected to the outer wall of the flue, a guide pipe is arranged inside the pretreatment box, one end of the guide pipe penetrates through the outer wall of the flue to the inside thereof and communicates with the lower inside of the flue after being divided, the other end of the guide pipe extends to the lower side of the pretreatment box, a smoke slot is formed in the upper inside of the flue after being divided and communicates with the upper inside of the pretreatment box, a filter element is detachably connected to the upper inside of the flue after being divided, and an agitating mechanism for dispersing bubbles containing waste gas is arranged on the pretreatment box.

[0006] The stirring mechanism comprises a motor fixedly connected to the bottom outer wall of the pretreatment box, a transmission column rotatably connected to the bottom inner wall of the pretreatment box, and a main shaft of the motor penetrating through the bottom of the pretreatment box to the inside of the pretreatment box and synchronously rotatably connected to the end of the transmission column.

[0007] Preferably, the two ends of the collecting tube gradually shrink towards the middle part, and the collecting tube forms a waist shape after shrinking.

[0008] Preferably, the upper inner wall of the waist shape formed by the collecting tube uniformly extends towards the center to form a laminated structure, and the gap between the laminated structures formed by the collecting tube is used to form a channel for the flow of bubbles.

[0009] Preferably, the cutting knives all extend upwards in an arc shape and have a semicircular structure, and the cutting knives cover the bottom of the guide pipe.

[0010] Preferably, the lower outer wall of the pretreatment box is fixedly connected to a drain pipe in communication with the inside of the pretreatment box, and the other end of the drain pipe is provided with a cover.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The utility model discloses a flue, a partition plate, a pretreatment box, a guide pipe, a smoke slot, a filter element and a stirring mechanism are arranged, waste gas containing particles is guided into the pretreatment box, the waste gas containing particles forms bubbles in the water in the pretreatment box, the particles are adsorbed by the water in the pretreatment box, thereby achieving the effect of pretreatment and purification of the particles in the waste gas, then the filter element processes the waste gas after the particles are purified, thereby making the waste gas meet the emission standard and being discharged, thereby reducing the probability of filter element blockage and increasing the efficiency of continuous heat treatment of metal by the metal heat treatment equipment.

[0013] 2. When the cutting knives rotate, the water in the collecting tube is stirred, vortexes are generated at the upper side of the collecting tube, the water in the pretreatment box enters the inside of the collecting tube from the upper side of the collecting tube and then returns to the inside of the pretreatment box along the inner wall of the collecting tube, so that the water in the pretreatment box and the collecting tube circulate, thereby preventing the water in the collecting tube from absorbing too many particles and affecting the pretreatment effect of the water on the particles in the bubbles, and according to the definition of a narrow tube, the flow rate of fluid increases when the fluid passes through a narrow area from a wide area, the collecting tube forms a waist shape, so that the flow rate of water flow increases when the water flow passes through the narrow part of the waist from the wide mouth of the two ends, the water circulation effect between the collecting tube and the pretreatment box is increased, and the effect of bubbles entering the inside of the pretreatment box for pretreatment is increased. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the flue in this utility model;

[0016] Figure 3 This is a cross-sectional view of the pretreatment box in this utility model;

[0017] Figure 4 for Figure 3 Enlarged view of section A in the image;

[0018] Figure 5 This is a schematic diagram of the structure of the collection tube in this utility model.

[0019] Explanation of the labels in the diagram:

[0020] 1. Flue; 2. Partition plate; 3. Pretreatment box; 4. Guide pipe; 5. Smoke tray; 6. Filter element; 7. Motor; 8. Transmission column; 9. Cutting blade; 10. Collection pipe; 11. Drain pipe; 12. Cover. Detailed Implementation

[0021] like Figures 1 to 5 As shown, this utility model relates to a waste gas guiding structure for a metal surface heat treatment equipment, including a flue 1, a partition plate 2 fixedly connected to the inner wall of the flue 1, the partition plate 2 dividing the internal channel of the flue 1 into two, a pretreatment box 3 fixedly connected to the outer wall of the flue 1, a guide pipe 4 provided inside the pretreatment box 3, one end of the guide pipe 4 penetrating through the outer wall of the flue 1 to its interior and communicating with the lower interior of the divided flue 1, the other end of the guide pipe 4 extending to the lower side of the pretreatment box 3, a flue trough 5 opened on the upper inner wall of the divided flue 1 communicating with the upper interior of the pretreatment box 3, a filter element 6 detachably connected to the upper inner wall of the divided flue 1, and an agitation mechanism for breaking up bubbles containing waste gas on the pretreatment box 3.

[0022] The agitation mechanism includes a motor 7, which is fixedly connected to the bottom outer wall of the pretreatment box 3. A transmission column 8 is rotatably connected to the bottom inner wall of the pretreatment box 3. The main shaft of the motor 7 passes through the bottom of the pretreatment box 3 to its interior and is synchronously connected to the end of the transmission column 8. Multiple cutting blades 9 are evenly fixedly connected to the outer wall of the transmission column 8. A collection pipe 10 is provided inside the pretreatment box 3 to cover the cutting blades 9 and the bottom of the guide pipe 4.

[0023] Specifically, by communicating the upper portion and the bottom portion of the flue 1 with the air pump and the metal heat treatment equipment in the prior art respectively, the air pump extracts air into the flue 1, and the partition plate 2 in the flue 1 divides the flue 1 into two parts, at this time, negative pressure is generated on the upper side of the flue 1, and the upper side and the lower side of the flue 1 are communicated with each other through the pretreatment box 3 and the guide pipe 4, so that the other end of the flue 1 starts to extract the exhaust gas from the metal heat treatment equipment, so that the exhaust gas enters the lower side of the flue 1, and then enters the pretreatment box 3 through the guide pipe 4, by filling water in the pretreatment box 3, when the exhaust gas enters the pretreatment box 3, the bubbles are formed, and the motor 7 operates to drive the transmission column 8 to rotate, the transmission column 8 drives the cutting knife 9 to rotate, so that the cutting knife 9 disperses the bubbles, so that the particulate matters in the exhaust gas are adsorbed by water, it should be noted that the large bubbles formed by the collection pipe 10 are discharged from the guide pipe 4, so as to prevent the bubbles from escaping, increase the effect of the cutting knife 9 on dispersing the bubbles, and increase the adsorption effect of the water on the particulate matters.

[0024] After the particulate matters are adsorbed by water, the exhaust gas enters the upper side of the flue 1 through the smoke slot 5, and is extracted by the air pump after being treated by the filter element 6, so that the exhaust gas meets the emission standard and is discharged, thereby reducing the probability of clogging of the filter element 6 and increasing the efficiency of continuous heat treatment of the metal heat treatment equipment on the metal.

[0025] Further, the two ends of the collection pipe 10 are gradually contracted towards the middle portion, and the collection pipe 10 forms a waist shape after contraction.

[0026] Specifically, when the cutting knife 9 rotates, the water in the collection pipe 10 is stirred, so that vortex is generated on the upper side of the collection pipe 10, so that the water in the pretreatment box 3 enters the inside of the collection pipe 10 from the upper side of the collection pipe 10 and then returns to the inside of the pretreatment box 3 along the inner wall of the collection pipe 10, so as to circulate the water in the pretreatment box 3 and the collection pipe 10, thereby preventing the water in the collection pipe 10 from absorbing too many particles to affect the pretreatment effect of the water on the particulate matters in the bubbles, and according to the definition of the narrow pipe, the flow rate of the fluid increases when the fluid passes through the narrow area from the wide area, and the waist shape of the collection pipe 10 makes the water flow faster when the water flows from the wide mouth of the two ends to the narrow mouth of the waist-shaped middle portion, thereby increasing the water circulation effect between the collection pipe 10 and the pretreatment box 3 and increasing the effect of the bubbles entering the pretreatment box for pretreatment.

[0027] Further, the upper inner wall of the waist shape of the collection pipe 10 extends uniformly towards the center to form a laminated structure, and the gaps between the laminated structures of the collection pipe 10 are used to form channels for the bubbles to flow.

[0028] Specifically, the lamination structure formed by the collecting pipe 10 makes the gaps between the lamination structures formed by the collecting pipe 10 form channels for the bubble flow when the dispersed bubbles escape in the collecting pipe 10 into the pretreatment box 3, so as to separate the bubbles and prevent the bubbles from gathering, thereby reducing the adsorption effect of water on the particulate matter contained in the bubbles.

[0029] Further, the cutting knives 9 are all arc-shaped upwards and have a semicircular structure, and the cutting knives 9 cover the bottom of the guide pipe 4;

[0030] Specifically, the cutting knives 9 cover the guide pipe 4, so that when the bubbles formed by the waste gas are discharged from the guide pipe 4, the cutting knives 9 can better wrap and cut the bubbles, thereby further preventing the bubbles from escaping.

[0031] Further, the lower side outer wall of the pretreatment box 3 is fixedly connected with a drain pipe 11 in communication with the inside of the pretreatment box 3, and the other end of the drain pipe 11 is provided with a cover 12;

[0032] Specifically, the drain pipe 11 and the cover 12 are arranged to increase the convenience of workers in replacing the water in the pretreatment box 3.

[0033] Working principle: the embodiment provides a waste gas guiding structure for a metal surface heat treatment equipment, in use, the upper part and the bottom of the flue 1 are respectively communicated with the air pump and the metal heat treatment equipment in the prior art, the air pump extracts air into the flue 1, and the partition plate 2 in the flue 1 divides the flue 1 into two parts, at this time, negative pressure is generated on the upper side of the flue 1, and the upper side and the lower side of the flue 1 are communicated with each other through the pretreatment box 3 and the guide pipe 4, so that the other end of the flue 1 starts to extract the waste gas from the metal heat treatment equipment, the waste gas enters the lower side of the flue 1, then enters the pretreatment box 3 through the guide pipe 4, and the water filled in the pretreatment box 3 makes the waste gas form bubbles when entering the pretreatment box 3, the motor 7 drives the transmission column 8 to rotate, the transmission column 8 drives the cutting knives 9 to rotate, so that the cutting knives 9 disperse the bubbles, so that the particulate matter in the waste gas is adsorbed by water, it should be noted that the large bubbles formed by the guide pipe 4 are covered by the collecting pipe 10, so as to prevent the bubbles from escaping, increase the effect of the cutting knives 9 on dispersing the bubbles, and increase the adsorption effect of water on the particulate matter;

[0034] After the particulate matter is adsorbed by water, the waste gas enters the upper side of the flue 1 through the smoke slot 5, is treated by the filter element 6, and is extracted by the air pump, so that the waste gas meets the emission standard and is discharged, thereby reducing the probability of the filter element 6 being blocked and increasing the efficiency of the metal heat treatment equipment on the continuous heat treatment of the metal.

[0035] The utility model discloses an embodiment discloses the better embodiment, but is not limited to this, and the ordinary skill of the art, the spirit of the utility model is appreciated to the above -mentioned embodiment, and different extension and change are made, but as long as not departing from the spirit of the utility model, all are in the protection range of the utility model.

Claims

1. A waste gas guiding structure for a metal surface heat treatment apparatus comprising a flue (1), characterized in that, The inner wall of the flue (1) is fixedly connected with a partition plate (2), the partition plate (2) divides the passage inside the flue (1) into two parts, the outer wall of the flue (1) is fixedly connected with a pretreatment box (3), the inside of the pretreatment box (3) is provided with a guide pipe (4), one end of the guide pipe (4) penetrates through the outer wall of the flue (1) to the inside thereof and communicates with the lower inside of the flue (1) after being divided, the other end of the guide pipe (4) extends to the lower side of the pretreatment box (3), the upper inside wall of the flue (1) after being divided is provided with a smoke slot (5) in communication with the upper inside of the pretreatment box (3), and the upper inside wall of the flue (1) after being divided is detachably connected with a filter core (6).

2. The exhaust gas guiding structure for a metal surface heat treatment apparatus according to claim 1, characterized by, The agitating mechanism comprises a motor (7) fixedly connected to the bottom outer wall of the pretreatment box (3), a transmission column (8) rotatably connected to the bottom inner wall of the pretreatment box (3), a main shaft of the motor (7) penetrating through the bottom of the pretreatment box (3) to the inside thereof and being synchronously rotatably connected to the end of the transmission column (8), a plurality of cutting knives (9) fixedly connected to the outer wall of the transmission column (8), and a collecting pipe (10) provided in the inside of the pretreatment box (3) and covering the bottom of the guide pipe (4).

3. The exhaust gas guiding structure for a metal surface heat treatment apparatus according to claim 2, characterized by, The two ends of the collecting pipe (10) gradually shrink to the middle part thereof, and the collecting pipe (10) forms a waist shape after shrinking.

4. The exhaust gas guiding structure for a metal surface heat treatment apparatus according to claim 3, characterized by The upper inside wall of the waist shape formed by the collecting pipe (10) extends to the center thereof to form a laminated structure, and the gap between the laminated structures formed by the collecting pipe (10) is used to form a passage for bubble flow.

5. The exhaust gas guiding structure for a metal surface heat treatment apparatus according to claim 2, characterized by The cutting knives (9) all extend upward in an arc shape and have a semicircular structure, and the cutting knives (9) cover the bottom of the guide pipe (4).

6. The exhaust gas guiding structure for a metal surface heat treatment apparatus according to claim 1, characterized by The lower outer wall of the pretreatment box (3) is fixedly connected with a drain pipe (11) in communication with the inside thereof, and the other end of the drain pipe (11) is provided with a cover (12).

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