A muffle furnace for producing diamond abrasive blocks

By installing a filter box and filter frame with built-in activated carbon in the muffle furnace to filter harmful gases, the problems of gas pollution and furnace door heat burns are solved, achieving gas purification and personnel protection.

CN224382076UActive Publication Date: 2026-06-19ZHONGJING (HENAN) DIAMOND TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGJING (HENAN) DIAMOND TECH CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing muffle furnaces fail to effectively purify harmful gases during exhaust, potentially polluting the air, and the heat can easily burn workers when the furnace lid is opened.

Method used

A filter box and filter frame are installed in the muffle furnace, with activated carbon inside for gas filtration. Insert plates are used to reduce the heat inside the chamber and prevent burns when the furnace door is opened.

Benefits of technology

It achieves gas purification, prevents harmful gases from being released into the air, and protects workers from heat damage.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224382076U_ABST
    Figure CN224382076U_ABST
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Abstract

This utility model discloses a muffle furnace for producing diamond grinding blocks, relating to the field of muffle furnace technology. It includes a muffle furnace body with an inner chamber fixedly installed inside. Four support plates are fixedly installed at the top of the furnace body, and filter boxes are provided at the top of the four support plates. A filter frame is slidably connected inside the filter box, and activated carbon is placed inside the filter frame. An exhaust pipe is fixedly connected to the bottom of the filter box, and a high-temperature resistant solenoid valve is fixedly installed on the outside of the exhaust pipe. One end of the exhaust pipe extends into the inner chamber. The beneficial effect of this utility model is that, by setting up the filter box, an appropriate amount of activated carbon is placed inside the filter frame before exhausting the gas, and then the filter frame is installed inside the filter box. This allows for the filtration of the exhaust gas, preventing toxic substances from entering the air.
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Description

Technical Field

[0001] This utility model relates to the field of muffle furnace technology, specifically a muffle furnace for the production of diamond grinding blocks. Background Technology

[0002] Modern muffle furnaces have been developed into general-purpose high-temperature heating equipment, widely used in materials science, chemical analysis, metallurgy and other fields. Their core advantages include uniform temperature field, low surface temperature, fast heating and cooling rate and energy-saving characteristics, making them an ideal choice for universities, research institutes and industrial and mining enterprises to carry out high-temperature sintering, metal annealing and other processes.

[0003] A search revealed that utility model CN218097154U provides a novel muffle furnace for producing diamond grinding blocks, belonging to the field of muffle furnace technology. It includes a housing and a cover mounted on the housing. A baking box is located inside the housing, and an insulation component is installed between the baking box and the inner wall of the housing to increase heat preservation efficiency. A drive assembly for air circulation within the housing is also provided. The drive assembly includes a blower connected to the bottom rear side of the housing, with a connecting pipe connected to the top of the blower, penetrating the housing and connecting to the baking box. The drive assembly also includes an exhaust pipe connected to the top of an exhaust pipe. The baking box has an air outlet and an air inlet, with the air outlet corresponding to the exhaust pipe and the air inlet corresponding to the connecting pipe. This utility model utilizes the drive assembly to circulate air within the baking box, ensuring that heat is evenly distributed within the baking box, guaranteeing uniform contact between the heat and the diamond grinding blocks, and effectively improving the efficiency of diamond grinding block processing.

[0004] The above-mentioned device has the following disadvantages: the exhaust gas usually carries harmful gases such as sulfur dioxide, the device cannot purify the exhaust gas, which may pollute the air, and when the workers open the furnace lid, the heat inside the furnace can easily burn the workers through the air, thus causing harm to the workers. Therefore, we propose a muffle furnace for diamond grinding block production. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a muffle furnace for the production of diamond grinding blocks, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a muffle furnace for producing diamond grinding blocks, comprising a muffle furnace body, an inner box fixedly installed inside the furnace body, four support plates fixedly installed at the top of the furnace body, filter boxes mounted at the top of the four support plates, a filter frame slidably connected inside the filter box, activated carbon disposed inside the filter frame, an exhaust pipe fixedly connected to the bottom of the filter box, a high-temperature resistant solenoid valve fixedly installed on the outside of the exhaust pipe, one end of the exhaust pipe extending into the inner box, and a [missing information - likely a device or component] fixedly installed at the top of the filter box. The exhaust frame has a sliding plate connected to one side of the inside of the muffle furnace body. The top of the muffle furnace body has a slot. To prevent the exhaust gas from carrying toxic gases, activated carbon is placed inside the frame to filter the gas. Furthermore, to prevent workers from being burned by the heat inside the furnace when the furnace door is opened, the sliding plate can be pulled out to reduce the heat inside the furnace. This design protects workers from injury.

[0007] Preferably, an installation plate is fixedly installed on one side of the muffle furnace body, and a blower is fixedly installed on the top of the installation plate. A connecting pipe is fixedly installed inside the inner box, and several air outlets are opened on the outside of the connecting pipe. An air inlet pipe is fixedly connected to one end of the connecting pipe, and one end of the air inlet pipe passes through one side of the muffle furnace body and is fixedly connected to the output end of the blower. By setting up the blower, the gas inside the inner box can be driven to flow, so that the heat can be fully contacted with the diamond grinding block, thereby achieving the best effect.

[0008] Preferably, the inner box has sliding grooves on both sides, and a placement plate is slidably connected inside the two sliding grooves. A heating plate is fixedly installed at the bottom of the inner box.

[0009] Preferably, two connecting blocks are rotatably connected to one side of the muffle furnace body, a furnace door is fixedly installed on one side of the two connecting blocks, a fastener is fixedly installed on one side of the furnace door, a locking pin is rotatably installed on one side of the muffle furnace body, the locking pin cooperates with the fastener, and high borosilicate glass is installed inside the furnace door.

[0010] Preferably, a control panel is fixedly installed at the bottom of the muffle furnace body, and a support base is fixedly installed at the bottom of the control panel.

[0011] Preferably, the high-temperature resistant solenoid valve, motor, heating plate, and blower are all electrically connected to the control panel.

[0012] This utility model provides a muffle furnace for producing diamond grinding blocks, which has the following advantages:

[0013] 1. The muffle furnace used for diamond grinding block production has a filter box. Before exhausting the gas, an appropriate amount of activated carbon is placed inside the filter frame, and then the filter frame is installed in the filter box. This allows the exhaust gas to be filtered. This process ensures that harmful gases such as sulfur dioxide carried in the exhaust gas are not allowed to enter the air.

[0014] 2. The muffle furnace used for diamond grinding block production has a baffle plate. Before opening the furnace door, the baffle plate is pulled out first, which allows the heat inside the inner chamber to be discharged and the heat inside the inner chamber to be reduced. Then, the operator can open the furnace door. This process ensures that the operator will not be burned when opening the furnace door. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram from another perspective of the present invention;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the interior of the filter box of this utility model.

[0019] In the diagram: 1. Muffle furnace body; 101. Slot; 102. Locking column; 2. Filter box; 201. Support plate; 3. Filter frame; 301. Activated carbon; 4. Exhaust frame; 5. Exhaust pipe; 6. High-temperature resistant solenoid valve; 9. Insert plate; 10. Control panel; 11. Inner box; 111. Slide groove; 12. Placement plate; 13. Heating plate; 14. Furnace door; 141. Connecting block; 142. Fastener; 15. High borosilicate glass; 16. Mounting plate; 17. Blower; 18. Inlet pipe; 19. Connecting pipe; 191. Outlet; 20. Support base. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 4This utility model provides a technical solution: a muffle furnace for producing diamond grinding blocks, including a muffle furnace body 1, an inner box 11 fixedly installed inside the muffle furnace body 1, four support plates 201 fixedly installed at the top of the muffle furnace body 1, a filter box 2 provided at the top of the four support plates 201, a filter frame 3 slidably connected inside the filter box 2, the filter frame 3 is used to place activated carbon 301, the activated carbon 301 is used to filter gas, and an exhaust pipe 5 is fixedly connected to the bottom of the filter box 2. The exhaust pipe 5 is made of white silicate insulation pipe and is used to... Gas is discharged into the filter box 2. A high-temperature resistant solenoid valve 6 is fixedly installed on the outside of the exhaust pipe 5. The high-temperature resistant solenoid valve 6 is used to control the opening and closing of the gas passage of the exhaust pipe 5. One end of the exhaust pipe 5 extends into the inner box 11. An exhaust frame 4 is fixedly installed on the top of the filter box 2. The exhaust frame 4 is used to discharge the filtered gas. An insert plate 9 is slidably connected to one side of the inside of the muffle furnace body 1. The insert plate 9 is made of high-temperature resistant nylon composite material. A slot 101 is opened at the top of the muffle furnace body 1. The insert plate 9 is inserted into the inner cavity of the slot 101 and closes the slot 101.

[0022] like Figure 2 As shown, a mounting plate 16 is fixedly installed on one side of the muffle furnace body 1, and a blower 17 is fixedly installed on the top of the mounting plate 16. The blower 17 is used to supply air into the inner box 11. A connecting pipe 19 is fixedly installed inside the inner box 11. The connecting pipe 19 is made of white silicate insulation pipe. Several air outlets 191 are opened on the outside of the connecting pipe 19. An air inlet pipe 18 is fixedly connected to one end of the connecting pipe 19. The air inlet pipe 18 is made of white silicate insulation pipe. One end of the air inlet pipe 18 passes through one side of the muffle furnace body 1 and is fixedly connected to the output end of the blower 17.

[0023] like Figure 3 As shown, the inner box 11 has sliding grooves 111 on both sides inside, and a placement plate 12 is slidably connected inside the two sliding grooves 111. The placement plate 12 is used to place diamond grinding blocks. A heating plate 13 is fixedly installed at the bottom inside the inner box 11 for heating.

[0024] like Figure 4 As shown, two connecting blocks 141 are rotatably connected to one side of the muffle furnace body 1. A furnace door 14 is fixedly installed on one side of the two connecting blocks 141. A fastener 142 is fixedly installed on one side of the furnace door 14. A locking pin 102 is rotatably installed on one side of the muffle furnace body 1. The locking pin 102 cooperates with the fastener 142. The locking pin 102 and the fastener 142 are used to lock the furnace door 14. High borosilicate glass 15 is installed inside the furnace door 14. The high borosilicate glass 15 is used to observe the inside of the inner box 11.

[0025] like Figure 1As shown, a control panel 10 is fixedly installed at the bottom of the muffle furnace body 1. The control panel 10 is used for manual control of the electrical structure of this device. Electrical components such as the blower 17 are powered by an external power supply. A support base 20 is fixedly installed at the bottom of the control panel 10. The support base 20 is used to support this device.

[0026] like Figure 1 As shown, the high-temperature resistant solenoid valve 6, heating plate 13, and blower 17 are all electrically connected to the control panel 10.

[0027] In summary, the muffle furnace for diamond grinding block production is used as follows: First, power on the device. Then, the operator opens the furnace door 14, places the diamond grinding blocks on the placement plate 12, and closes the furnace door 14. Next, rotate the locking pin 102 to engage the buckle 142. Then, use the control panel 10 to open the heating plate 13, and begin heating the inner chamber 11. The operator can observe the state of the inner chamber 11 through the borosilicate glass 15. After heating for the designated time...

[0028] The worker starts the blower 17 at low power via control panel 10, directing airflow through inlet duct 18 into connecting pipe 19, and then through outlet 191 into inner chamber 11. This agitates the air inside inner chamber 11. Meanwhile, electric heating plate 13 operates normally. The high-temperature resistant solenoid valve 6 is then opened via control panel 10, allowing the air inside inner chamber 11 to exit through exhaust pipe 5. Since the exiting air carries toxic substances such as sulfur dioxide, it flows through exhaust pipe 5 into filter frame 3. The activated carbon 301 inside filter frame 3 adsorbs the harmful substances in the exiting sulfur dioxide and other harmful gases. The filtered air is then discharged through exhaust frame 4. After heating is complete...

[0029] First, use the control panel 10 to stop the heating plate 13 from working. After the gas in the muffle furnace body 1 is discharged, in order to prevent the heat emitted when the operator opens the furnace door 14 from burning the operator, first open the insert plate 9 to allow the heat to be discharged from the slot 101. The premise is that the gas discharged by using the slot 101 does not contain toxic substances. Then, after a few minutes, turn off the blower 17. The operator then turns the locking pin 102 and opens the furnace door 14. Use a tool to pull out the placement plate 12, and then the heated diamond grinding block can be removed. Note that the temperature range of this device is room temperature to 1000 degrees Celsius. The above is the working principle of this utility model.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A muffle furnace for diamond tool production, comprising a muffle furnace body (1), characterized in that: The muffle furnace body (1) has an inner box (11) fixedly installed inside. Four support plates (201) are fixedly installed at the top of the muffle furnace body (1). A filter box (2) is provided at the top of the four support plates (201). A filter frame (3) is slidably connected inside the filter box (2). Activated carbon (301) is provided inside the filter frame (3). An exhaust pipe (5) is fixedly connected at the bottom of the filter box (2). A high-temperature resistant solenoid valve (6) is fixedly installed on the outside of the exhaust pipe (5). One end of the exhaust pipe (5) extends into the inner box (11). An exhaust frame (4) is fixedly installed at the top of the filter box (2). A plug plate (9) is slidably connected to one side of the inside of the muffle furnace body (1). A slot (101) is opened at the top of the muffle furnace body (1).

2. The muffle furnace for producing a diamond abrasive block according to claim 1, characterized in that: An installation plate (16) is fixedly installed on one side of the muffle furnace body (1). A blower (17) is fixedly installed on the top of the installation plate (16). A connecting pipe (19) is fixedly installed inside the inner box (11). Several air outlets (191) are opened on the outside of the connecting pipe (19). An air inlet pipe (18) is fixedly connected to one end of the connecting pipe (19). One end of the air inlet pipe (18) passes through one side of the muffle furnace body (1) and is fixedly connected to the output end of the blower (17).

3. The muffle furnace for producing a diamond abrasive block according to claim 1, characterized in that: The inner box (11) has sliding grooves (111) on both sides inside, and a placement plate (12) is slidably connected inside the two sliding grooves (111). A heating plate (13) is fixedly installed at the bottom inside the inner box (11).

4. The muffle furnace for producing a diamond abrasive block according to claim 1, characterized in that: Two connecting blocks (141) are rotatably connected to one side of the muffle furnace body (1). A furnace door (14) is fixedly installed on one side of the two connecting blocks (141). A buckle (142) is fixedly installed on one side of the furnace door (14). A locking pin (102) is rotatably installed on one side of the muffle furnace body (1). The locking pin (102) cooperates with the buckle (142). High borosilicate glass (15) is installed inside the furnace door (14).

5. The muffle furnace for producing a diamond abrasive block according to claim 1, characterized in that: A control panel (10) is fixedly installed at the bottom of the muffle furnace body (1), and a support base (20) is fixedly installed at the bottom of the control panel (10).

6. The muffle furnace for producing diamond grinding blocks according to claim 1, characterized in that: The high-temperature resistant solenoid valve (6), motor (7), heating plate (13) and blower (17) are all electrically connected to the control panel (10).