Device for collecting and treating waste gas of silk-covered oven

Abstract

The utility model discloses a waste gas collection and treatment device for a silk-covered oven. The waste gas collection and treatment device comprises a plurality of collection chambers, an air exhaust treatment unit and a control device, the plurality of collecting chambers are arranged in one-to-one correspondence to a plurality of baking ovens in a workshop, and each collecting chamber is supported on the ground of the workshop and covers the corresponding baking oven. The air exhaust treatment unit is arranged in the mounting room, the air inlet end of the air exhaust treatment unit extends into the workshop so as to be communicated with the collecting chambers respectively, and the opposite air outlet end of the air exhaust treatment unit extends out of the mounting room so as to be used for exhausting waste gas in the collecting chambers outwards, treating the waste gas and discharging the treated waste gas to the atmosphere. And the control device is used for correspondingly adjusting the exhaust gas discharge flow of the corresponding collection chamber according to the exhaust gas pressure in each collection chamber and correspondingly adjusting the exhaust gas suction force according to the exhaust gas pressure in the air suction treatment unit. The device disclosed by the utility model can effectively solve the workshop environment problem caused by overflow of waste gas and heat, and ensures that the concentration and temperature of the waste gas in the collecting chamber are kept within a certain range so as not to influence normal production.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas collection and treatment, in particular to a waste gas collection and treatment device for a wire bag drying furnace. Background Art

[0002] Due to the harmful gases generated during the paint baking heating process in the baking area of ​​the silk-covered wire equipment in the silk-covered workshop, smoke is caused in the workshop and the room temperature rises, which has a significant impact on the working environment. The harmful gases need to be collected and treated.

[0003] The common method in the existing electromagnetic wire industry is to install a collection hood above the drying furnace and extract it through a fan. This method can collect some exhaust gas but cannot solve the smoke and heat brought out by the wire core at the outlet of the drying furnace. As the country's requirements for environmental protection and employee working environment increase, the existing treatment method can no longer meet national standards. Utility Model Content

[0004] The utility model provides a waste gas collection and treatment device for a wire-wrapped drying furnace, so as to solve the technical problem that the existing treatment method cannot solve the smoke and heat brought out by the wire core at the drying furnace outlet, and thus cannot meet the national standard requirements.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A waste gas collection and treatment device for a silk bag drying furnace, comprising: a plurality of collection chambers for collecting waste gas, preventing waste gas from overflowing and guiding the flow direction of the collected waste gas, an exhaust treatment unit and a control device for controlling the operation of the exhaust treatment unit; the plurality of collection chambers are arranged one by one corresponding to a plurality of drying furnaces in a workshop, each collection chamber is supported on the floor of the workshop and covered outside the corresponding drying furnace; the exhaust treatment unit is arranged in an installation room adjacent to the workshop, the air inlet end of the exhaust treatment unit extends into the workshop to be connected to each collection chamber respectively, and its opposite air outlet end extends out of the installation room, the exhaust treatment unit is used to extract the waste gas in each collection chamber to the outside and discharge it to the atmosphere after treatment; the control device is used to adjust the exhaust flow rate of the corresponding collection chamber according to the exhaust pressure in each collection chamber, and is used to adjust the exhaust suction force according to the exhaust pressure in the exhaust treatment unit.

[0007] Furthermore, the exhaust treatment unit includes a guide pipe group for guiding exhaust gas, a filter group for filtering exhaust gas, and an exhaust unit for sucking exhaust gas; the air inlet end of the guide pipe group is located in the workshop and is respectively connected to each collecting chamber, and its relative air outlet end is extended along the length direction of the installation room and extends out of the installation room; the filter group and the exhaust unit are respectively arranged in the installation room, and are successively connected to the pipeline of the guide pipe group.

[0008] Furthermore, the guide pipe group includes a plurality of branch pipes arranged corresponding to each collecting chamber, a main pipe connected to the plurality of branch pipes respectively, and a chimney connected to the exhaust end of the main pipe; each branch pipe is arranged vertically and the lower end is inserted into the corresponding collecting chamber; the air inlet end of the main pipe is respectively connected to each branch pipe, and its opposite exhaust end extends into the installation room and is extended along the length direction of the installation room, and the filter unit is connected to the pipeline of the main pipe, and the exhaust unit is connected to the exhaust end of the main pipe; the chimney is arranged vertically, and its lower end is connected to the exhaust side of the exhaust unit, and its opposite upper end passes through the installation room and extends outward.

[0009] Furthermore, the control device includes a plurality of first wind pressure detectors arranged in each collecting chamber, a plurality of dampers arranged in each branch pipe, and a controller respectively connected to the plurality of first wind pressure detectors and the plurality of dampers; the first wind pressure detector is used to detect the first exhaust gas pressure in the correspondingly arranged collecting chamber, so that the controller controls the opening size of the damper in the branch pipe connected to the collecting chamber according to the received first exhaust gas pressure.

[0010] Furthermore, the exhaust unit includes a motor and a fan connected to the output end of the motor; the motor is connected to the control device; the air inlet side of the fan is connected to the air outlet end of the main pipe, and the air exhaust side of the fan is connected to the chimney.

[0011] Furthermore, the control device also includes a second wind pressure detector arranged in the main pipe between the filter group and the fan, and the second wind pressure detector is connected to the controller; the second wind pressure detector is used to detect the second exhaust gas pressure in the main pipe after the filter group, so that the controller adjusts the speed of the motor accordingly according to the received second exhaust gas pressure.

[0012] Furthermore, the control device also includes an alarm connected to the second wind pressure detector and the controller respectively, and the alarm is used to alarm when the second exhaust gas pressure exceeds a set value.

[0013] Furthermore, the filter unit comprises an activated carbon filter.

[0014] Furthermore, the collecting chamber includes a cylindrical portion supported on the floor of the workshop and surrounding the drying furnace, and a contraction portion connected to the top of the cylindrical portion and gradually shrinking inward in a cone shape along the height direction; the branch pipe is vertically fixed on the top of the contraction portion.

[0015] Furthermore, a plurality of switch doors for people to enter and exit are arranged on the wall surface of the cylindrical portion, and door locks and handles are arranged on the switch doors.

[0016] The utility model has the following beneficial effects:

[0017] The utility model relates to a waste gas collection and treatment device for a silk bag drying furnace, which adds a collection chamber to the original drying furnace, which can collect waste gas to prevent waste gas overflow and facilitate the flow of waste gas, thereby ensuring that waste gas and hot air are collected in the collection chamber, and effectively solving the problems of workshop environment and personnel work safety caused by waste gas and heat overflow; multiple drying furnaces share a set of exhaust treatment units, which simplifies pipeline setting and use costs, and the exhaust treatment unit collects waste gas in an installation room adjacent to the workshop for treatment, thereby ensuring that the waste gas concentration and temperature in the collection chamber are maintained within a certain range so as not to affect normal production, and at the same time can safely and effectively treat the waste gas to avoid affecting the operation of the drying furnace.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the spatial structure of the waste gas collection and treatment device of the silk bag drying furnace of the preferred embodiment of the utility model;

[0021] Figure 2 yes Figure 1 Schematic diagram of the main structure;

[0022] Figure 3 yes Figure 1 Schematic diagram of the space structure after removing the workshop and installation room;

[0023] Figure 4 yes Figure 3 Schematic diagram of the partial cross-sectional structure.

[0024] Legend

[0025] 10. Collection chamber; 101. Open and close door; 102. Door lock; 103. Handle; 21. First wind pressure detector; 22. Air damper; 23. Second wind pressure detector; 30. Workshop; 40. Oven; 50. Installation room; 60. Guide pipe group; 61. Branch pipe; 62. Main pipe; 63. Chimney; 70. Filter unit; 80. Exhaust unit; 81. Motor; 82. Fan. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0027] Reference Figure 1-2 , Figure 4 The preferred embodiment of the utility model provides a waste gas collection and treatment device for a silk-wrapped drying furnace, comprising: a plurality of collection chambers 10 for collecting waste gas, preventing waste gas from overflowing and guiding the flow direction of the collected waste gas, an exhaust treatment unit, and a control device for controlling the operation of the exhaust treatment unit. The plurality of collection chambers 10 are arranged one by one corresponding to the plurality of drying furnaces 40 in the workshop 30, and each collection chamber 10 is arranged on the ground of the workshop 30 and the cover is arranged outside the corresponding drying furnace 40. The exhaust treatment unit is arranged in an installation room 50 adjacent to the workshop 30, and the air inlet end of the exhaust treatment unit extends into the workshop 30 to connect each collection chamber 10 respectively, and its opposite air outlet end extends out of the installation room 50, and the exhaust treatment unit is used to extract the waste gas in each collection chamber 10 outward and discharge it to the atmosphere after treatment. The control device is used to adjust the exhaust gas discharge flow rate of the corresponding collection chamber 10 according to the exhaust gas pressure in each collection chamber 10, and to adjust the exhaust gas suction force according to the exhaust gas pressure in the exhaust treatment unit.

[0028] In the waste gas collection and treatment device of the silk-wrapped drying furnace of the utility model, harmful gases are generated during the heating process of the drying furnace 40 for baking paint. The harmful gases first enter the corresponding collection chamber 10, and then the exhaust treatment unit is started, and the harmful gases in the collection chamber 10 are sucked into the exhaust treatment unit, and after being treated by the exhaust treatment unit, the exhaust gas meets the emission standard, and finally is discharged to the atmosphere from the exhaust end of the exhaust treatment unit. In this process, the control device detects the waste gas pressure in each collection chamber 10 in real time, and then adjusts the flow rate of the waste gas in the collection chamber 10 entering the exhaust treatment unit accordingly, ensuring that the waste gas concentration and temperature in the collection chamber 10 are maintained within a certain range so as not to affect normal production; at the same time, the control device also detects the waste gas pressure in the exhaust treatment unit in real time, so as to adjust the suction force of the exhaust treatment unit on the waste gas accordingly, thereby ensuring the normal operation of the exhaust treatment unit to normally treat and discharge the waste gas.

[0029] The utility model relates to a waste gas collection and treatment device for a silk-wrapped drying furnace, which adds a collection chamber 10 to the original drying furnace 40, which can collect waste gas to prevent waste gas overflow and facilitate the flow of waste gas, thereby ensuring that waste gas and hot air are collected in the collection chamber 10, and effectively solving the problems of workshop environment and personnel work safety caused by waste gas and heat overflow; a plurality of drying furnaces 40 share a set of exhaust treatment units, which simplifies the pipeline setting and use cost, and the exhaust treatment unit collects the waste gas into an installation room 50 adjacent to the workshop 30 for treatment, thereby ensuring that the waste gas concentration and temperature in the collection chamber 10 are maintained within a certain range so as not to affect normal production, and at the same time can safely and effectively treat the waste gas to avoid affecting the operation of the drying furnace 40.

[0030] Alternatively, if Figure 2As shown, the exhaust treatment unit includes a guide pipe group 60 for guiding the waste gas, a filter group 70 for filtering the waste gas, and an exhaust unit 80 for sucking the waste gas. The air inlet end of the guide pipe group 60 is located in the workshop 30 and is connected to each collection chamber 10 respectively, and its opposite air outlet end is extended along the length direction of the installation room 50 and extends out of the installation room 50. The filter group 70 and the exhaust unit 80 are respectively arranged in the installation room 50, and are successively connected to the pipeline of the guide pipe group 60. During operation, the waste gas in each collection chamber 10 first enters the guide pipe group 60 under the action of the exhaust unit 80, and then is filtered and treated by the filter group 70 to meet the atmospheric emission standard. The treated gas is then discharged into the atmosphere from the air outlet end of the guide pipe group 60 after passing through the exhaust unit 80. In this optional solution, the filter group 70 includes an activated carbon filter.

[0031] In this option, if Figure 2 As shown, the guide pipe group 60 includes a plurality of branch pipes 61 arranged corresponding to each collection chamber 10, a main pipe 62 connected to the plurality of branch pipes 61, and a chimney 63 connected to the exhaust end of the main pipe 62. Each branch pipe 61 is arranged vertically and the lower end is inserted into the corresponding collection chamber 10. The air inlet end of the main pipe 62 is connected to each branch pipe 61, and the opposite exhaust end thereof extends into the installation room 50 and is extended and arranged along the length direction of the installation room 50, and the filter unit 70 is connected to the pipeline of the main pipe 62, and the exhaust unit 80 is connected to the exhaust end of the main pipe 62. The chimney 63 is arranged vertically, and its lower end is connected to the exhaust side of the exhaust unit 80, and its opposite upper end is passed through the installation room 50 and then extends outward. The structural setting of the guide pipe group 60, on the one hand, facilitates its connection with each collection chamber 10 through multiple branch pipes 61, and at the same time allows the exhaust gas from all the collection chambers 10 to eventually enter a main pipe 62, and be filtered by the filter unit 70 and then discharged from the chimney 63. This greatly simplifies the overall structural setting of the guide pipe group 60 and reduces equipment costs while meeting its working performance.

[0032] Furthermore, combined with Figure 3 As shown, the exhaust unit 80 includes a motor 81 and a fan 82 connected to the output end of the motor 81. The motor 81 is connected to the control device. The air inlet side of the fan 82 is connected to the air outlet end of the main pipe 62, and the air exhaust side of the fan 82 is connected to the chimney 63. In this optional solution, the fan 82 is frequency-controlled. During operation, harmful gases are generated during the paint heating process of the drying furnace 40. The harmful gases first enter the collection chamber 10, and then the motor 81 is started. The rotation of the motor 81 drives the fan 82 to rotate, and the exhaust gas is uniformly introduced into the main pipe 62 through each branch pipe 61, and then the exhaust gas is guided into the activated carbon filter. After filtration, the gas that meets the emission standards is finally discharged from the chimney 63 to the outside of the installation room 50.

[0033] In this option, if Figure 2As shown, the control device includes a plurality of first wind pressure detectors 21 arranged in each collecting chamber 10, a plurality of dampers 22 arranged in each branch pipe 61, and a controller connected to the plurality of first wind pressure detectors 21 and the plurality of dampers 22 respectively. The first wind pressure detector 21 is used to detect the first exhaust gas pressure in the corresponding collecting chamber 10, so that the controller can control the opening size of the damper 22 in the branch pipe 61 connected to the collecting chamber 10 according to the received first exhaust gas pressure. In the specific embodiment of this optional scheme, the first wind pressure detector 21 is a first wind pressure sensor. When working, the first wind pressure sensor detects the first exhaust gas pressure in the corresponding collecting chamber 10 in real time, and sends the first exhaust gas pressure value to the controller. After receiving the first exhaust gas pressure value, the controller compares it with the first wind pressure value set by the system. If the first exhaust gas pressure value is greater than the first wind pressure value, the opening of the corresponding damper 22 is controlled to increase, otherwise the opening of the damper 22 is controlled to decrease, thereby ensuring that the exhaust gas concentration and temperature in the collecting chamber 10 are kept within a certain range so as not to affect normal production.

[0034] Furthermore, if Figure 2 As shown, the control device also includes a second wind pressure detector 23 disposed in the main pipe 62 between the filter unit 70 and the fan 82, and the second wind pressure detector 23 is connected to the controller. The second wind pressure detector 23 is used to detect the second exhaust gas pressure in the main pipe 62 after the filter unit 70, so that the controller adjusts the speed of the motor 81 accordingly according to the received second exhaust gas pressure. In the specific embodiment of this optional scheme, the second wind pressure detector 23 is a second wind pressure sensor. When working, the second wind pressure detector detects the second exhaust gas pressure in the main pipe 62 after the filter unit 70 in real time, and sends the second exhaust gas pressure value to the controller. After receiving the second exhaust gas pressure value, the controller compares it with the second wind pressure value set by the system. If the second exhaust gas pressure value is greater than the second wind pressure value, the fan 82 is controlled to increase the speed, otherwise the fan 82 is controlled to reduce the speed, thereby ensuring the normal operation of the exhaust treatment unit to normally process and discharge the exhaust gas.

[0035] Preferably, if Figure 2 As shown, the control device also includes an alarm connected to the second wind pressure detector 23 and the controller respectively. The alarm is used to alarm when the second exhaust gas pressure exceeds the set value. At the same time, the alarm can also be used to determine whether the filter unit 70 is blocked, and then the filter unit 70 can be cleaned or replaced in time to avoid affecting the exhaust gas treatment effect.

[0036] Alternatively, if Figure 2As shown, the collection chamber 10 includes a cylindrical portion supported on the floor of the workshop 30 and surrounding the drying oven 40, and a contraction portion connected to the top of the cylindrical portion and gradually contracting in the height direction to form a cone. The branch pipe 61 is vertically fixed to the top of the contraction portion. In this optional solution, the structural setting of the collection chamber 10, on the one hand, enables it to collect waste gas and prevent it from overflowing, and at the same time, the structural setting of the contraction portion also enables the collection chamber 10 to guide the flow of the collected waste gas, so that the waste gas is concentrated at the top of the contraction portion, and then it is easy to be discharged outward through the branch pipe 61.

[0037] Preferably, if Figure 4 As shown, the wall of the cylindrical part is provided with a plurality of switch doors 101 for personnel to enter and exit, and the switch doors 101 are also provided with door locks 102 and handles 103. During operation, when the operator enters the collection chamber 10 and opens and closes the switch doors 101 and the oven 40, the temperature in the oven 40 will not change.

[0038] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A waste gas collection and treatment device for a wire bag drying furnace, It is characterized in that include: A plurality of collection chambers (10) for collecting waste gas, preventing waste gas from overflowing and guiding the flow direction of the collected waste gas, a gas extraction processing unit and a control device for controlling the operation of the gas extraction processing unit; The plurality of collecting chambers (10) are arranged one by one corresponding to the plurality of drying ovens (40) in the workshop (30), and each collecting chamber (10) is supported on the floor of the workshop (30) and covered outside the corresponding drying oven (40); The exhaust treatment unit is arranged in an installation room (50) adjacent to the workshop (30), the air inlet end of the exhaust treatment unit extends into the workshop (30) to be connected to each collection chamber (10), and the opposite air outlet end extends out of the installation room (50), and the exhaust treatment unit is used to extract the waste gas in each collection chamber (10) and discharge it to the atmosphere after treatment; The control device is used to adjust the exhaust flow rate of the corresponding collection chamber (10) according to the exhaust pressure in each collection chamber (10), and is used to adjust the exhaust suction force according to the exhaust pressure in the exhaust treatment unit.

2. The waste gas collection and treatment device for the silk package drying furnace according to claim 1, It is characterized in that The exhaust treatment unit comprises a guide pipe unit (60) for guiding the exhaust gas, a filter unit (70) for filtering the exhaust gas, and an exhaust unit (80) for sucking the exhaust gas; The air inlet end of the guide pipe group (60) is located in the workshop (30) and is connected to each collecting chamber (10), and the air outlet end thereof is arranged along the length direction of the installation room (50) and extends out of the installation room (50); The filter unit (70) and the air extraction unit (80) are respectively arranged in the installation room (50) and are connected to the pipeline of the guide pipe unit (60) in sequence.

3. The waste gas collection and treatment device for the silk package drying furnace according to claim 2, It is characterized in that The guide pipe group (60) includes a plurality of branch pipes (61) arranged corresponding to each collecting chamber (10), a main pipe (62) respectively connected to the plurality of branch pipes (61), and a chimney (63) connected to the exhaust end of the main pipe (62); Each branch pipe (61) is arranged vertically and its lower end is inserted into the corresponding collecting chamber (10); The air inlet end of the main pipe (62) is connected to each branch pipe (61), and the air outlet end thereof extends into the installation room (50) and is arranged along the length direction of the installation room (50). The filter unit (70) is connected to the pipeline of the main pipe (62), and the air extraction unit (80) is connected to the air outlet end of the main pipe (62). The chimney (63) is vertically arranged, with its lower end connected to the exhaust side of the exhaust unit (80), and its upper end extending outward after passing through the installation room (50).

4. The waste gas collection and treatment device for the silk package drying furnace according to claim 3, It is characterized in that The control device comprises a plurality of first wind pressure detectors (21) arranged in each collecting chamber (10), a plurality of dampers (22) arranged in each branch pipe (61), and a controller respectively connected to the plurality of first wind pressure detectors (21) and the plurality of dampers (22); The first wind pressure detector (21) is used to detect a first exhaust gas pressure in a correspondingly arranged collection chamber (10), thereby enabling a controller to control the opening size of an air door (22) in a branch pipe (61) connected to the collection chamber (10) according to the received first exhaust gas pressure.

5. The waste gas collection and treatment device for the silk package drying furnace according to claim 4, It is characterized in that The air extraction unit (80) includes a motor (81) and a fan (82) connected to the output end of the motor (81); The motor (81) is connected to the control device; The air inlet side of the fan (82) is connected to the air outlet end of the main pipe (62), and the air outlet side of the fan (82) is connected to the chimney (63).

6. The waste gas collection and treatment device for the silk package drying furnace according to claim 5, It is characterized in that The control device further comprises a second wind pressure detector (23) disposed in the main pipe (62) between the filter unit (70) and the fan (82), and the second wind pressure detector (23) is connected to the controller; The second wind pressure detector (23) is used to detect the second exhaust gas pressure in the main pipe (62) after the filter unit (70), so that the controller can adjust the rotation speed of the motor (81) accordingly according to the received second exhaust gas pressure.

7. The waste gas collection and treatment device for the silk package drying furnace according to claim 6, It is characterized in that The control device also includes an alarm connected to the second wind pressure detector (23) and the controller respectively, and the alarm is used to alarm when the second exhaust gas pressure exceeds a set value.

8. The waste gas collection and treatment device for the silk package drying furnace according to claim 2, It is characterized in that The filter unit (70) includes an activated carbon filter.

9. The waste gas collection and treatment device for the silk package drying furnace according to claim 3, It is characterized in that The collecting chamber (10) includes a cylindrical portion supported on the floor of the workshop (30) and surrounding the drying oven (40), and A contraction portion connected to the top of the cylindrical portion and gradually shrinking inward in a cone shape along the height direction; The branch pipe (61) is vertically fixed on the top end of the contraction portion.

10. The waste gas collection and treatment device for the silk package drying furnace according to claim 9, It is characterized in that The wall surface of the cylindrical portion is provided with a plurality of switch doors (101) for people to enter and exit, and the switch doors (101) are also provided with door locks (102) and handles (103).

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