Dustproof bin
By using dustproof chambers in the production of single crystal furnaces and using negative pressure equipment and filter systems to treat dust, the problems of dust hazards and electrical short circuits are solved, and a safe and efficient operating environment is achieved.
Patent Information
- Application Number
- CN202422270374.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-18
AI Technical Summary
During the production process of single crystal furnaces, the dust generated by grinding graphite and carbon-carbon composite components is easily sucked in by the human body, endangering health and causing safety hazards of short circuits in electrical appliances.
A dustproof bin is designed, including the bin wall, negative pressure equipment and filter. The dust falls into the container chamber through the filter and is drawn out by the negative pressure equipment. Combined with the dust detection and control system, it ensures that the dust concentration is within a safe range.
Effectively reduce the dust concentration in the workspace, protect the health of workers, prevent power short circuits, and improve safety and operating efficiency.
Smart Images
Figure CN223047633U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of single crystal furnace production, in particular to a dust-proof chamber. Background Art
[0002] During the production process of single crystal furnaces, a large number of devices made of graphite materials and carbon-carbon composite materials are used. After being used for a period of time, a large amount of hardened particle and powder impurities are easily deposited and attached to the surfaces of these devices. Therefore, it is necessary to polish the surfaces of these devices irregularly. However, due to the material characteristics of these devices, a large amount of dust is generated during polishing, and this dust is easily inhaled by the human body, thus endangering physical health. Summary of the Utility Model
[0003] In order to solve at least one problem mentioned in the background art, the utility model provides a dust-proof chamber, which can prevent the dust generated during operation from being inhaled by the human body.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] The utility model provides a dust-proof chamber, which includes a chamber wall, a negative pressure device and a filter screen. The chamber wall encloses a working space. The filter screen is arranged in the working space and is connected to the inner side of the chamber wall. The surface of the filter screen serves as the working place for construction workers. A dust accommodating cavity is formed between the filter screen and the bottom of the chamber wall, so that the dust generated during operation falls into the accommodating cavity through the gaps of the filter screen.
[0006] A dust passage is opened in the chamber wall. The dust passage is communicated with the accommodating cavity. The negative pressure device is located outside the chamber wall and is communicated with the dust passage to extract the dust in the accommodating cavity to the outside of the chamber wall through the negative pressure device. The chamber wall is provided with ventilation holes and a chamber door.
[0007] As an optional implementation manner, the dust passage includes a passage main body arranged around the chamber wall, an inlet communicating the passage main body and the accommodating cavity, and an outlet communicating the passage main body and the negative pressure device. There are multiple inlets, and the multiple inlets are evenly distributed on the inner side of the chamber wall.
[0008] As an optional implementation manner, a transition inclined surface is formed at the connection between the bottom of the inlet and the accommodating cavity.
[0009] As an optional implementation manner, the height of the bottom of the chamber door is higher than the height of the filter screen.
[0010] As an optional implementation manner, both the length and width of the chamber door are less than 1.2 meters.
[0011] As an optional implementation manner, the height of the filter screen from the bottom of the accommodating cavity is 40 cm - 50 cm.
[0012] As an alternative implementation, it further includes a first detection unit and a controller. The first detection unit, the negative pressure device and the controller are electrically connected. The first detection unit is arranged on the inner side of the bin wall and is used to detect the dust concentration at the corresponding height. The controller is configured to control the negative pressure device to operate at a first power to extract the dust in the working space when the dust concentration detected by the first detection unit reaches a first preset value.
[0013] As an alternative implementation, the height of the first detection unit from the filter screen is 60 cm - 70 cm.
[0014] As an alternative implementation, it further includes a second detection unit. The second detection unit is arranged at the top of the bin wall and is used to detect the dust concentration at the corresponding height. The controller is configured to control the negative pressure device to operate at a second power to extract the dust in the working space when the dust concentration detected by the second detection unit reaches a second preset value, where the second preset value is greater than the first preset value and the second power is greater than the first power.
[0015] As an alternative implementation, it further includes a lighting lamp and a pressure sensor. The lighting lamp is arranged on the inner side of the bin wall, and the pressure sensor is arranged at the position where the filter screen is connected to the bin wall. The pressure sensor is used to detect the load on the filter screen. The controller is configured to turn on the lighting lamp when the load detected by the pressure sensor reaches a third preset value.
[0016] The dust-proof bin chamber provided by the present utility model includes a bin wall, a negative pressure device and a filter screen. The bin wall encloses a working space. The filter screen is arranged in the working space and is connected to the inner side of the bin wall. The surface of the filter screen serves as the working place for construction workers. A dust accommodation cavity is formed between the filter screen and the bottom of the bin wall so that the dust generated during operation can fall into the accommodation cavity through the gaps of the filter screen. A dust passage is provided in the bin wall, and the dust passage is communicated with the accommodation cavity. The negative pressure device is located outside the bin wall and is communicated with the dust passage to extract the dust in the accommodation cavity to the outside of the bin wall through the negative pressure device. The bin wall is provided with ventilation holes and a bin door. The dust-proof bin chamber provided by the present utility model. When using the dust-proof bin chamber provided by the present utility model to polish graphite devices or carbon-carbon devices, workers can enter the interior of the dust-proof bin chamber through the bin door on the bin wall and step on the filter screen for polishing operations. The dust generated during the operation can fall onto the filter screen under the feet and fall into the bottom accommodation cavity through the pores on the filter screen. The dust in the accommodation cavity can be sucked into the dust passage by the negative pressure device and finally into the negative pressure device. The through holes on the bin wall can supplement the air extracted by the negative pressure device from the outside, thereby greatly reducing the dust concentration in the working space, avoiding damage to the physical health of workers after inhaling too much dust, and at the same time, the reduction of the dust concentration can also prevent power short circuits caused by dust and improve the safety during operation. Description of the Drawings
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] Figure 1 Schematic diagram of the overall structure of the dust-proof chamber provided by the embodiment of the present invention;
[0019] Figure 2 Schematic diagram of the internal structure of the dust-proof chamber provided by the embodiment of the present invention;
[0020] Figure 3 For Figure 1 the front view of;
[0021] Figure 4 For Figure 3 the sectional view taken along line A-A in;
[0022] Explanation of reference numerals:
[0023] 100 - Dust-proof chamber;
[0024] 110 - Chamber wall;
[0025] 111 - Dust passage;
[0026] 1111 - Passage main body;
[0027] 1112 - Entrance;
[0028] 1113 - Exit;
[0029] 1114 - Inclined plane;
[0030] 112 - Ventilation hole;
[0031] 113 - Chamber door;
[0032] 120 - Negative pressure device;
[0033] 130 - Filter screen;
[0034] 140 - Accommodation cavity;
[0035] 150 - First detection unit;
[0036] 160 - Second detection unit. Detailed implementation manners
[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0038] In the application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present utility model and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.
[0039] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to specific circumstances.
[0040] In addition, the terms "installed", "set", "provided with", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0041] In addition, terms such as "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality" is two or more.
[0042] During the production process of single crystal furnaces, a large number of devices made of graphite materials and carbon-carbon composite materials are used. Due to the special production process of single crystal furnaces, the temperature inside the furnace is between 1400°C and 1700°C, and there is also a large amount of silicon vapor. This vapor will continuously corrode graphite and carbon-carbon devices during the crystal pulling process, and a large amount of hardened particle and powder impurities will deposit and adhere to their surfaces. Therefore, it is necessary to polish the surfaces of these devices irregularly. However, due to the material characteristics of these devices, a large amount of dust will be generated during polishing, and these dusts are easily inhaled by the human body, thus endangering physical health. In addition, since graphite dust and carbon-carbon dust are conductive, a large amount of dust in the air is likely to cause electrical short circuits, posing a huge safety hazard.
[0043] In view of this, a dust-proof chamber 100 provided by the present utility model allows one to enter the interior of the dust-proof chamber 100 through the chamber door 113 on the chamber wall 110 when polishing graphite or carbon-carbon devices, and step on the filter screen 130 for polishing operations. The dust generated during the operation can fall onto the filter screen 130 under the feet and fall into the accommodation cavity 140 at the bottom through the pores on the filter screen 130. The dust in the accommodation cavity 140 can be sucked into the dust passage 111 by the negative pressure device 120 and finally into the negative pressure device 120. The through holes on the chamber wall 110 can supplement the air extracted by the negative pressure device 120 from the outside, thereby greatly reducing the dust concentration in the working space, avoiding damage to the physical health of operators after inhaling too much dust. At the same time, the reduction of the dust concentration can also prevent power short circuits caused by dust and improve the safety during operation.
[0044] Figure 1 Schematic diagram of the overall structure of the dust-proof chamber provided by the embodiment of the present utility model; Figure 2 Schematic diagram of the internal structure of the dust-proof chamber provided by the embodiment of the present utility model; Figure 3 For Figure 1 the front view; Figure 4 For Figure 3 the cross-sectional view taken along line A-A in
[0045] Reference can be made to Figures 1 to 4, an embodiment of the present utility model provides a dust-proof chamber 100, which includes a chamber wall 110, a negative pressure device 120, and a filter screen 130. The chamber wall 110 encloses a working space. The filter screen 130 is arranged in the working space and is connected to the inner side of the chamber wall 110. The surface of the filter screen 130 serves as the working place for construction workers. A dust accommodation cavity 140 is formed between the filter screen 130 and the bottom of the chamber wall 110, so that the dust generated during operation falls into the accommodation cavity 140 through the gaps of the filter screen 130; a dust passage 111 is opened in the chamber wall 110, and the dust passage 111 is communicated with the accommodation cavity 140. The negative pressure device 120 is located outside the chamber wall 110, and the negative pressure device 120 is communicated with the dust passage 111 to extract the dust in the accommodation cavity 140 to the outside of the chamber wall 110 through the negative pressure device 120. The chamber wall 110 is provided with ventilation holes 112 and a chamber door 113.
[0046] Among them, a filter screen 130 can be arranged at the ventilation hole 112. The filter screen 130 can allow external air to enter the interior of the dust-proof chamber 100, and can block the entry and exit of dust, avoiding the escape of dust from the through hole to the outside of the dust-proof chamber 100, thereby polluting the external environment.
[0047] When using the dust-proof chamber 100 provided by the embodiment of the present utility model to polish graphite devices or carbon-carbon devices, it is possible to enter the interior of the dust-proof chamber 100 through the chamber door 113 on the chamber wall 110 and step on the filter screen 130 for polishing operations. The dust generated during the operation can fall on the filter screen 130 under the feet and fall into the bottom accommodation cavity 140 through the pores on the filter screen 130. The dust in the accommodation cavity 140 can be sucked into the dust passage 111 by the negative pressure device 120 and finally sucked into the negative pressure device 120. The through holes on the chamber wall 110 can supplement the air extracted by the negative pressure device 120 from the outside, thereby greatly reducing the dust concentration in the working space, avoiding damage to the physical health of operators after inhaling too much dust. At the same time, the reduction of the dust concentration can also prevent power short circuits caused by dust and improve the safety during operation.
[0048] In the above embodiment, the dust passage 111 may include a passage main body 1111 arranged around the chamber wall 110, an inlet 1112 communicating the passage main body 1111 and the accommodation cavity 140, and an outlet 1113 communicating the passage main body 1111 and the negative pressure device 120. There are multiple inlets 1112, and the multiple inlets 1112 are evenly distributed on the inner side of the chamber wall 110. The suction force generated by the negative pressure device 120 can absorb the dust in the accommodation cavity 140 at the bottom of the filter screen 130 into the passage main body 1111 through each inlet 1112 and extract it to the negative pressure device 120 through the outlet 1113 for collection. This design method of the dust passage 111 can make the dust in the accommodation cavity 140 be sucked more thoroughly, avoiding the situation where the dust in the dead corner position is difficult to be absorbed.
[0049] In the above embodiments, a transition inclined surface 1114 can be formed at the connection between the bottom of the inlet 1112 and the accommodating cavity 140. This inclined surface 1114 can facilitate the inhalation of dust in the accommodating cavity 140 into the dust passage 111 inlet 1112, and avoid the difficulty of sucking the dust remaining at the bottom edge of the accommodating cavity 140.
[0050] In the above embodiments, the height of the bottom of the door 113 can be higher than the height of the filter screen 130. With such a design, it can be avoided that during the process of opening the door 113, the dust remaining on the filter screen 130 escapes from the opened door 113 to the outside of the dust-proof chamber 100, thus polluting the external environment.
[0051] In the above embodiments, the length and width of the door 113 can be less than 1.2 meters. If the door 113 is designed too large, the sealing effect of the dust-proof chamber 100 will be worse, and it is easy to cause the internal dust to escape to the outside, polluting the external environment. If the door 113 is designed too small, it is inconvenient for the staff to enter.
[0052] In the above embodiments, the height of the filter screen 130 from the bottom of the accommodating cavity 140 can be 40 cm - 50 cm. If the height of the filter screen 130 is too high, it is inconvenient for the staff to climb onto the filter screen 130 for operation. If the height of the filter screen 130 is too low, the space of the accommodating cavity 140 will be too small, and the ability to accommodate dust will be insufficient. Moreover, the dust accumulated in the accommodating cavity 140 is likely to fly back above the filter screen 130 and be inhaled by the operating personnel.
[0053] In the above embodiments, a first detection unit 150 and a controller can also be included. The first detection unit 150 and the negative pressure device 120 are both electrically connected to the controller. The first detection unit 150 is arranged inside the bin wall 110. The first detection unit 150 is used to detect the dust concentration at the height where it is located. The controller is configured to control the negative pressure device 120 to operate at a first power to extract the dust in the working space when the dust concentration detected by the first detection unit 150 reaches a first preset value. Through the first detection unit 150, the dust concentration inside the dust-proof chamber 100 can be detected in real time. When the dust concentration reaches the threshold value that is about to damage human health, the controller controls the negative pressure device 120 to open and start extracting the dust in the dust-proof chamber 100, so that the dust concentration in the chamber decreases rapidly. With such a design, it can be avoided that the negative pressure device 120 continuously works without interruption. It only needs to be opened irregularly to work, which greatly avoids the waste of electricity and reduces the cost.
[0054] In the above embodiments, the height of the first detection unit 150 from the filter screen 130 can be 60 cm - 70 cm. In this way, the height where the first detection unit 150 is located can be equivalent to the height of the head of the operator during work, so as to more accurately monitor the impact of the dust in the environment where the operator is located on physical health, and thus timely adjust the dust concentration inside the dust-proof chamber 100 through the negative pressure device 120.
[0055] In the above embodiments, a second detection unit 160 may further be included. The second detection unit 160 is disposed at the top of the chamber wall 110 and is used to detect the dust concentration at the height where it is located. The controller is configured to control the negative pressure device 120 to operate at a second power to extract the dust in the working space when the dust concentration detected by the second detection unit 160 reaches a second preset value. Herein, the second preset value is greater than the first preset value, and the second power is greater than the first power. By providing the first sensor and the second sensor at different heights and making the negative pressure device 120 work at different powers, power can be further saved, and the negative pressure device 120 can adjust the dust concentration in the dust-proof chamber 100 with the lowest energy consumption, thereby prolonging the service life of the device.
[0056] In the above embodiments, a lighting lamp and a pressure sensor may further be included. The lighting lamp is disposed inside the chamber wall 110, and the pressure sensor is disposed at the position where the filter screen 130 is connected to the chamber wall 110. The pressure sensor is used to detect the load on the filter screen 130. The controller is configured to control the lighting lamp to turn on when the load detected by the pressure sensor reaches a third preset value. It can be understood that when the operator steps on the filter screen 130, the pressure sensor is subjected to a certain pressure. After receiving the feedback from the pressure sensor, the controller can control the lighting lamp to turn on. When the operator leaves the filter screen 130, the pressure signal fed back by the pressure sensor changes, and the controller controls the lighting lamp to turn off. In this way, electric energy can be further saved. In addition, it can also prevent the dust floating in the chamber from conducting electricity when the lighting lamp is manually turned on, thereby avoiding the occurrence of a power short circuit and improving the operation safety.
[0057] The dust-proof chamber 100 provided by the embodiment of the present utility model includes a chamber wall 110, a negative pressure device 120, and a filter screen 130. The chamber wall 110 encloses a working space. The filter screen 130 is arranged in the working space and is connected to the inner side of the chamber wall 110. The surface of the filter screen 130 serves as the working place for construction workers. A dust accommodation cavity 140 is formed between the filter screen 130 and the bottom of the chamber wall 110, so that the dust generated during operation falls into the accommodation cavity 140 through the gaps of the filter screen 130; a dust passage 111 is formed in the chamber wall 110, and the dust passage 111 is communicated with the accommodation cavity 140. The negative pressure device 120 is located outside the chamber wall 110, and the negative pressure device 120 is communicated with the dust passage 111 to extract the dust in the accommodation cavity 140 to the outside of the chamber wall 110 through the negative pressure device 120. The chamber wall 110 is provided with ventilation holes 112 and a chamber door 113. The dust-proof chamber 100 provided by the present utility model. When using the dust-proof chamber 100 provided by the embodiment of the present utility model to polish graphite devices or carbon-carbon devices, it is possible to enter the interior of the dust-proof chamber 100 through the chamber door 113 on the chamber wall 110 and step on the filter screen 130 for polishing operations. The dust generated during the operation can fall on the filter screen 130 under the feet and fall into the bottom accommodation cavity 140 through the pores on the filter screen 130. The dust in the accommodation cavity 140 can be sucked into the dust passage 111 by the negative pressure device 120 and finally sucked into the negative pressure device 120. The through holes on the chamber wall 110 can supplement the air extracted by the negative pressure device 120 from the outside, thereby greatly reducing the dust concentration in the working space, avoiding damage to the physical health of operators after inhaling too much dust. At the same time, the reduction of the dust concentration can also prevent the power short circuit caused by dust and improve the safety during operation.
[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.
Claims
1. A dustproof chamber, characterized in that: It includes a warehouse wall, a negative pressure device and a filter screen, wherein the warehouse wall is enclosed to form a working space, the filter screen is arranged in the working space and connected to the inner side of the warehouse wall, the surface of the filter screen is used as a working place for construction workers, and a dust containing cavity is formed between the filter screen and the bottom of the warehouse wall, so that the dust generated during the operation passes through the gap of the filter screen and falls into the containing cavity; A dust channel is opened in the warehouse wall, and the dust channel is connected to the accommodating chamber. The negative pressure device is located outside the warehouse wall, and the negative pressure device is connected to the dust channel, so that the dust in the accommodating chamber can be extracted to the outside of the warehouse wall through the negative pressure device. The warehouse wall is provided with a vent and a warehouse door.
2. The dustproof chamber according to claim 1, characterized in that: The dust channel includes a channel body arranged around the warehouse wall, an inlet connecting the channel body and the accommodating chamber, and an outlet connecting the channel body and the negative pressure device. There are multiple inlets, and the multiple inlets are evenly distributed on the inner side of the warehouse wall.
3. The dustproof chamber according to claim 2, characterized in that: A transitional slope is formed at the junction of the inlet bottom and the accommodating cavity.
4. The dustproof chamber according to claim 3, characterized in that: The height of the bottom of the bin door is higher than the height of the filter screen.
5. The dustproof chamber according to claim 4, characterized in that: The length and width of the warehouse door are both less than 1.2 meters.
6. The dustproof chamber according to claim 5, characterized in that: The height of the filter screen from the bottom of the accommodating cavity is 40cm-50cm.
7. The dustproof chamber according to any one of claims 1 to 6, characterized in that: It also includes a first detection unit and a controller, wherein the first detection unit and the negative pressure device are electrically connected to the controller, the first detection unit is arranged on the inner side of the warehouse wall, and the first detection unit is used to detect the dust concentration at the height, and the controller is configured to control the negative pressure device to operate at a first power to extract dust from the working space when the dust concentration detected by the first detection unit reaches a first preset value.
8. The dustproof chamber according to claim 7, characterized in that: The first detection unit is at a height of 60 cm to 70 cm from the filter.
9. The dustproof chamber according to claim 8, characterized in that: It also includes a second detection unit, which is arranged on the top of the warehouse wall, and is used to detect the dust concentration at the height. The controller is configured to control the negative pressure device to operate at a second power to extract dust from the working space when the dust concentration detected by the second detection unit reaches a second preset value, wherein the second preset value is greater than the first preset value, and the second power is greater than the first power.
10. The dustproof chamber according to claim 9, characterized in that: It also includes a lighting lamp and a pressure sensor, wherein the lighting lamp is arranged on the inner side of the warehouse wall, the pressure sensor is arranged at the position where the filter screen and the warehouse wall are connected, the pressure sensor is used to detect the load weight on the filter screen, and the controller is configured to control the lighting lamp to turn on when the load weight detected by the pressure sensor reaches a third preset value.