Desulfurization device for graphite production

Abstract

The utility model relates to a desulfurization device for graphite production, which is characterized in that sulfur in graphite is oxidized into sulfur dioxide or sulfur trioxide after being heated and combusted, the sulfur dioxide or the sulfur trioxide is discharged into a filter chamber from an opened exhaust port through a gas guide pipe, and then enters an adsorption bin through a partition plate close to one side of an exhaust port; then the adsorbent in the adsorption bin absorbs sulfur in the waste gas, the treated gas is exhausted out of the device through the exhaust port after adsorption is completed, in the waste gas treatment process, the gas detector monitors the gas flow exhausted out of the exhaust port in real time, when adsorption of the adsorbent is saturated, the gas flow passing through the exhaust port can change, and the gas flow is discharged out of the device through the exhaust port. When the adsorbent in the adsorption bin needs to be replaced, the exhaust port at the position can be closed through the first stop valve, so that the original standby waste gas adsorption mechanism is started for use, and then the first stop valve at the position of the saturated adsorbent is operated; and the saturated adsorbent is discharged out of the adsorption bin through the discharge port.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization technology in graphite production, and in particular to a desulfurization device for graphite production. Background Technology

[0002] Graphite anode material is an essential material in battery manufacturing, and sulfur is one of its important components. However, a high sulfur content in graphite anode material can adversely affect battery performance. Therefore, removing sulfur from graphite anode material has become a necessary process.

[0003] Combustion-based desulfurization utilizes an oxidant to oxidize sulfur in graphite anode materials into sulfur dioxide or sulfur trioxide. The resulting waste gas is then absorbed by an adsorbent. However, existing desulfurization devices discharge large amounts of sulfur-containing waste gas during desulfurization, and the adsorbents are prone to oversaturation. Existing desulfurization devices cannot effectively replace the adsorbents in a timely manner, resulting in the discharge of gases with excessive sulfur content outside the device, causing pollution in the production workshop and affecting the health of workshop operators. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the aforementioned problems in the prior art, this utility model provides a desulfurization device for graphite production, which can more conveniently and efficiently adsorb and filter sulfur-containing waste gas, and promptly replace the adsorbent when it becomes oversaturated, reducing the probability of unqualified gas being emitted into the workshop.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A desulfurization device for graphite production includes a graphitization furnace body and two sets of waste gas adsorption mechanisms. The upper part of the graphitization furnace body is provided with two exhaust ports, and one of the waste gas adsorption mechanisms is connected to one of the exhaust ports.

[0009] The waste gas adsorption mechanism includes a replenishment component, a gas guide pipe, a first shut-off valve, a first material shut-off valve, a filter chamber, a partition, and a gas detector. One end of the filter chamber has an inlet, and the other end has an outlet. The inlet is connected to the exhaust port via the gas guide pipe. A partition is provided on both sides of the filter chamber, and each partition has several air passage holes. The space between the partitions forms an adsorption chamber. An inlet is located at the top of the filter chamber, and an outlet is located at the bottom. Both the inlet and outlet are located inside the adsorption chamber. The replenishment component is connected to the inlet. A first material shut-off valve is located inside the outlet. The gas detector is located at the outlet of the filter chamber, and the first shut-off valve is located on the exhaust port.

[0010] Furthermore, the supplementary component includes a storage tank, a metering pump, and a second shut-off valve. The storage tank has a feeding port at its lower part, which is connected to the feed inlet. The metering pump is installed on the feeding port. The storage tank has an addition port at its upper part, and the second shut-off valve is located inside the addition port.

[0011] Furthermore, the waste gas adsorption mechanism also includes a discharge assembly, which is connected to the filter chamber;

[0012] The unloading assembly includes a waste collection box, a discharge hose, a shaking assembly, and a discharge hopper. The waste collection box has a slag inlet at its upper part. The lower part of the discharge hose is connected to the slag inlet through the discharge hopper. The upper part of the discharge hose is connected to the discharge outlet. The shaking assembly is connected to the outside of the filter chamber.

[0013] Furthermore, the vibration assembly includes a vibration motor, a spring, and a mounting plate. The vibration motor is detachably mounted on the outer surface of the filter chamber. The mounting plate is sleeved on the outside of the discharge hopper and fixedly connected to the discharge hopper. The mounting plate is connected to the bottom surface of the filter chamber by a plurality of springs.

[0014] Furthermore, it also includes a sealing door, and the waste collection box is provided with a slag discharge port at the bottom, and the sealing door is detachably connected to the slag discharge port.

[0015] Furthermore, it also includes a PLC controller, which is electrically connected to the graphitization furnace body and the two sets of waste gas adsorption mechanisms.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this utility model are as follows: In actual production and use, the first shut-off valve in one set of waste gas adsorption mechanisms opens the exhaust port at this location, and the waste gas is adsorbed and filtered by the waste gas adsorption mechanism. The first shut-off valve in another set of waste gas adsorption components closes the exhaust port at this location for standby. When desulfurization treatment of graphite is required, graphite powder can be placed inside the graphitization furnace body for heating, so that the sulfur in the graphite is oxidized into sulfur dioxide or sulfur trioxide through the heated combustion. The sulfur dioxide is discharged into the filter chamber through the open exhaust port and the gas is then discharged into the adsorption chamber through the baffle plate near the exhaust port. The adsorbent in the adsorption chamber then absorbs the sulfur in the waste gas. After adsorption is completed, the treated gas is discharged outside the device through the exhaust port. During the waste gas treatment process, the gas is detected... The instrument monitors the airflow exiting the outlet in real time. When the adsorbent is relatively saturated, the airflow through the outlet will change, thus indicating the saturation status of the adsorbent. When it is necessary to replace the adsorbent in the adsorption chamber, the exhaust port at that location can be closed through the first shut-off valve, allowing the previously reserved waste gas adsorption mechanism to be activated. Then, the first shut-off valve at the saturated adsorbent location is operated, allowing the saturated adsorbent to be discharged from the adsorption chamber through the discharge port. Subsequently, the discharge port is closed, and the replenishment component is operated to add new adsorbent to the adsorption chamber, awaiting the next waste gas treatment. This enables more convenient and efficient adsorption and filtration of sulfur-containing waste gas, and timely replacement of the adsorbent when it is oversaturated, reducing the probability of unqualified gas being emitted into the workshop. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a desulfurization device for graphite production according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the graphitization furnace body of a desulfurization device for graphite production according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the waste gas adsorption mechanism of a desulfurization device for graphite production according to an embodiment of this utility model.

[0021] Figure 4 This is a cross-sectional view of the waste gas adsorption mechanism of the desulfurization device for graphite production according to an embodiment of the present invention.

[0022] [Explanation of Labels in the Attached Image]

[0023] Waste gas adsorption mechanism 1, graphitization furnace body 2, exhaust port 3, storage tank 101, filter chamber 102, vibration motor 103, mounting plate 104, waste collection box 105, first shut-off valve 106, gas guide pipe 107, support frame 108, second shut-off valve 109, gas detector 110, adsorption chamber 111, spring 112, discharge hose 113, discharge hopper 114, sealing door 115, first shut-off valve 116, metering pump 117, partition 118. Detailed Implementation

[0024] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Please refer to Figures 1 to 4 As shown, a desulfurization device for graphite production according to this utility model includes a graphitization furnace body 2 and two sets of waste gas adsorption mechanisms 1. The upper part of the graphitization furnace body 2 is provided with two exhaust ports 3, and one of the waste gas adsorption mechanisms 1 is connected to one of the exhaust ports 3.

[0026] The waste gas adsorption mechanism 1 includes a replenishment component, a gas guide pipe 107, a first shut-off valve 106, a first material shut-off valve 116, a filter chamber 102, a partition plate 118, and a gas detector 110. One end of the filter chamber 102 has an inlet, and the other end has an outlet. The inlet is connected to the exhaust port 3 via the gas guide pipe 107. A partition plate 118 is provided on both sides inside the filter chamber 102, and several perforations are provided on the partition plate 118. The filter chamber 102 has an adsorption chamber 111 between the partitions 118, an inlet at the top and an outlet at the bottom. Both the inlet and outlet are located inside the adsorption chamber 111. The supplementary component is connected to the inlet. A first shut-off valve 116 is installed inside the outlet. A gas detector 110 is installed at the outlet of the filter chamber 102. The first shut-off valve 106 is installed on the exhaust port 3.

[0027] The working principle of this utility model is as follows: In actual production and use, the first shut-off valve 106 in one set of waste gas adsorption mechanism 1 opens the exhaust port 3 at this location, and the waste gas is adsorbed and filtered by the waste gas adsorption mechanism 1. The first shut-off valve 106 in another set of waste gas adsorption components closes the exhaust port 3 at this location for standby. When desulfurization treatment of graphite is required, graphite powder can be placed inside the graphitization furnace body 2 for heating, so that the sulfur in the graphite is oxidized into sulfur dioxide or sulfur trioxide after heating and combustion. The sulfur is discharged from the opened exhaust port 3 through the gas guide pipe 107 into the filter chamber 102, and then enters the adsorption chamber 111 through the partition 118 near the discharge port. Subsequently, the adsorbent in the adsorption chamber 111 absorbs the sulfur in the waste gas. After adsorption is complete... After completion, the treated gas is discharged outside the device through the exhaust port. During the waste gas treatment process, the gas detector 110 monitors the airflow discharged from the exhaust port in real time. When the adsorbent is relatively saturated, the airflow through the exhaust port will change, thus indicating the saturation status of the adsorbent. When it is necessary to replace the adsorbent in the adsorption chamber 111, the exhaust port 3 at this position can be closed through the first shut-off valve 106, allowing the previously standby waste gas adsorption mechanism 1 to be activated. Then, the first material shut-off valve 116 at the saturated adsorbent is operated, allowing the saturated adsorbent to be discharged from the adsorption chamber 111 through the discharge port. Then, the discharge port is closed, and the replenishment component is operated to add new adsorbent to the adsorption chamber 111, waiting for the next waste gas treatment.

[0028] Furthermore, the supplementary components include a storage tank 101, a metering pump 117, and a second shut-off valve 109. The storage tank 101 has a feeding port at its lower part, which is connected to the feed port. The metering pump 117 is installed on the feeding port. The storage tank 101 has an addition port at its upper part, and the second shut-off valve 109 is located inside the addition port.

[0029] As can be seen from the above description, when it is necessary to replace the saturated adsorbent in the adsorption chamber 111, the saturated adsorbent can be discharged from the adsorption chamber 111 first, and then the metering pump 117 can be run to inject the new adsorbent stored in the storage tank 101 into the adsorption chamber 111 for filling. When it is necessary to replenish the adsorbent in the storage tank 101, the second shut-off valve 109 can be run to open the addition port, so that the adsorbent can enter the storage tank 101 better. After the addition is completed, the addition port is closed by the second shut-off valve 109 to prevent the adsorbent from getting damp.

[0030] Furthermore, the waste gas adsorption mechanism 1 also includes a discharge assembly, which is connected to the filter chamber 102;

[0031] The unloading assembly includes a waste collection box 105, a discharge hose 113, a shaking assembly, and a discharge hopper 114. The waste collection box 105 is provided with a slag inlet at its upper part. The lower part of the discharge hose 113 is connected to the slag inlet through the discharge hopper 114. The upper part of the discharge hose 113 is connected to the discharge outlet. The shaking assembly is connected to the outside of the filter chamber 102.

[0032] As can be seen from the above description, when it is necessary to better discharge the adsorbent in the adsorption chamber 111, the shaking component can be operated to make the filter chamber 102 vibrate, so that the saturated adsorbent can enter the discharge hopper 114 through the discharge hose 113 and then enter the waste collection box 105 for collection.

[0033] Furthermore, the vibration assembly includes a vibration motor 103, a spring 112, and a mounting plate 104. The vibration motor 103 is detachably mounted on the outer surface of the filter chamber 102. The mounting plate 104 is sleeved on the outside of the discharge hopper 114 and fixedly connected to the discharge hopper 114. The mounting plate 104 is connected to the bottom surface of the filter chamber 102 through a plurality of springs 112.

[0034] As can be seen from the above description, when it is necessary to better discharge the adsorbent in the adsorption chamber 111, the vibration motor 103 can be operated to drive the filter chamber 102 to shake, thereby allowing the adsorbent in the adsorption chamber 111 to be better shaken off to the discharge port for discharge.

[0035] Furthermore, it also includes a sealing door 115, and the waste collection box 105 is provided with a slag discharge port at the bottom, and the sealing door 115 is detachably connected to the slag discharge port.

[0036] As can be seen from the above description, it is advantageous to open and close the slag discharge port through the sealing door 115, so that the collected adsorbent can be discharged from the slag discharge port.

[0037] Furthermore, it also includes a PLC controller, which is electrically connected to the graphitization furnace body 2 and the two sets of waste gas adsorption mechanisms 1 respectively.

[0038] As can be seen from the above description, it is beneficial to adjust the parameters of the desulfurization unit for graphite production through the PLC controller, and it makes it more convenient for operators to operate the desulfurization unit for graphite production. Example 1

[0039] Please refer to Figures 1 to 4 A desulfurization device for graphite production includes a graphitization furnace body 2 and two sets of waste gas adsorption mechanisms 1. The upper part of the graphitization furnace body 2 is provided with two exhaust ports 3, and one of the waste gas adsorption mechanisms 1 is connected to one of the exhaust ports 3.

[0040] The waste gas adsorption mechanism 1 includes a replenishment component, a gas guide pipe 107, a first shut-off valve 106, a first material shut-off valve 116, a filter chamber 102, a partition plate 118, and a gas detector 110. One end of the filter chamber 102 has an inlet, and the other end has an outlet. The inlet is connected to the exhaust port 3 via the gas guide pipe 107. A partition plate 118 is provided on both sides inside the filter chamber 102, and several perforations are provided on the partition plate 118. The filter chamber 102 has an adsorption chamber 111 between the partitions 118, an inlet at the top and an outlet at the bottom. Both the inlet and outlet are located inside the adsorption chamber 111. The supplementary component is connected to the inlet. A first shut-off valve 116 is located inside the outlet. A gas detector 110 is located at the outlet of the filter chamber 102. The first shut-off valve 106 is located on the exhaust port 3.

[0041] The supplementary components include a storage tank 101, a metering pump 117, and a second shut-off valve 109. The storage tank has a feeding port at its lower part, which is connected to the feed port. The metering pump 117 is installed on the feeding port. The storage tank 101 has an addition port at its upper part, and the second shut-off valve 109 is installed inside the addition port.

[0042] The waste gas adsorption mechanism 1 also includes a discharge assembly, which is connected to the filter chamber 102;

[0043] The unloading assembly includes a waste collection box 105, a discharge hose 113, a shaking assembly, and a discharge hopper 114. The waste collection box 105 is provided with a slag inlet at the top. The lower part of the discharge hose 113 is connected to the slag inlet through the discharge hopper 114. The upper part of the discharge hose 113 is connected to the discharge outlet. The shaking assembly is connected to the outside of the filter chamber 102.

[0044] It also includes a support frame 108, through which the storage tank 101 is fixedly connected to the outer surface of the waste collection box 105 via the support frame 108;

[0045] The vibration assembly includes a vibration motor 103, a spring 112, and a mounting plate 104. The vibration motor 103 is detachably mounted on the outer surface of the filter chamber 102. The mounting plate 104 is sleeved on the outside of the discharge hopper 114 and fixedly connected to the discharge hopper 114. The mounting plate 104 is connected to the bottom surface of the filter chamber 102 through a plurality of springs 112.

[0046] It also includes a sealing door 115, and the waste collection box 105 is provided with a slag discharge port at the bottom, and the sealing door 115 is detachably connected to the slag discharge port;

[0047] It also includes a PLC controller, which is electrically connected to the graphitization furnace body 2 and the two sets of waste gas adsorption mechanisms 1 respectively;

[0048] The PLC controller is model DATA-7311. The PLC controller is electrically connected to the graphitization furnace body 2, the first gas shut-off valve 106, the first material shut-off valve 116, the second material shut-off valve 109, the vibration motor 103, the metering pump 117, and the gas detector 110.

[0049] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A desulfurization device for graphite production, characterized by: The graphite furnace body is provided with two exhaust ports in the upper portion, and each exhaust port is connected with one exhaust adsorption mechanism. The exhaust adsorption mechanism comprises a supplement assembly, a gas guide pipe, a first gas cut-off valve, a first material cut-off valve, a filter chamber, a partition plate and a gas detection meter.

2. The desulfurization device for graphite production according to claim 1, characterized by: The supplement assembly comprises a storage tank, a quantitative pump and a second material cut-off valve.

3. The desulfurization device for graphite production according to claim 2, characterized by: The exhaust adsorption mechanism further comprises a discharging assembly connected with the filter chamber. The discharging assembly comprises a waste collecting box, a discharging hose, a shaking assembly and a discharging hopper.

4. The desulfurization device for graphite production according to claim 3, characterized by: The shaking assembly comprises a vibrating motor, springs and a mounting plate.

5. The desulfurization device for graphite production according to claim 3, characterized in that: A sealing door is further provided.

6. The desulfurization device for graphite production according to claim 1, characterized in that: A PLC controller is further provided and electrically connected with the graphite furnace body and the two exhaust adsorption mechanisms.

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