Filter for recycling waste lithium batteries and filtering and conveying method
阅读说明：本技术 一种用于废旧锂电池回收的过滤机及过滤和输送方法 (Filter for recycling waste lithium batteries and filtering and conveying method ) 是由 胡玮 余凯平 汝艳 武家勇 胡立明 沙琳 司东亚 张扬 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种用于废旧锂电池回收的过滤机及过滤和输送方法,包括支架,支架上设有筒体,筒体上设有筒盖,所述筒体内设有滤芯骨架,滤芯骨架上套有过滤袋,所述筒盖上设有进液管,进液管上设有阀门,进液管出口位于过滤袋内,所述筒体底部设有滤液输送管路；所述支架上还设有过滤泵,所述过滤泵连接压缩空气管路,压缩空气管路上设有阀门；所述筒体下方连接滤渣进泵管路,所述滤渣进泵管路上设有电磁阀,所述滤渣进泵管路端头一分为二,一端头连接进气管路,所述进气管路上设有进气阀门,另一端头连接气动隔膜泵,所述气动隔膜泵上设有滤渣输送管路。实现在线连续过滤、固液自动分离、滤液及滤渣自动输送至下一步处理容器内处理。(The invention discloses a filter and a filtering and conveying method for waste lithium battery recovery, which comprises a bracket, wherein a barrel is arranged on the bracket, a barrel cover is arranged on the barrel, a filter element framework is arranged in the barrel, a filter bag is sleeved on the filter element framework, a liquid inlet pipe is arranged on the barrel cover, a valve is arranged on the liquid inlet pipe, an outlet of the liquid inlet pipe is positioned in the filter bag, and a filtrate conveying pipeline is arranged at the bottom of the barrel; the bracket is also provided with a filter pump, the filter pump is connected with a compressed air pipeline, and a valve is arranged on the compressed air pipeline; the filter residue pump inlet pipeline is connected to the lower portion of the barrel, an electromagnetic valve is arranged on the filter residue pump inlet pipeline, the end of the filter residue pump inlet pipeline is divided into two parts, one end of the filter residue pump inlet pipeline is connected with an air inlet pipeline, an air inlet valve is arranged on the air inlet pipeline, the other end of the filter residue pump inlet pipeline is connected with a pneumatic diaphragm pump, and a filter residue conveying pipeline is arranged on the pneumatic diaphragm pump. Realizing on-line continuous filtration, automatic solid-liquid separation and automatic conveying of filtrate and filter residue to the next treatment container for treatment.)
1. The utility model provides a filter for old and useless lithium cell is retrieved which characterized in that: the filter bag comprises a support (8), wherein a barrel body (4) is arranged on the support (8), a barrel cover (21) is arranged on the barrel body (4), a filter element framework (22) is arranged in the barrel body (4), a filter bag (5) is sleeved on the filter element framework (22), a liquid inlet pipe (1) is arranged on the barrel cover (21), a valve is arranged on the liquid inlet pipe (1), an outlet of the liquid inlet pipe (1) is positioned in the filter bag (5), and a filtrate conveying pipeline (19) is arranged at the bottom of the barrel body (4);
the support (8) is also provided with a filter pump (23), the filter pump (23) is connected with a compressed air pipeline (20), and a valve is arranged on the compressed air pipeline (20);
the filter residue pump feeding device is characterized in that a filter residue pump feeding pipeline (14) is connected to the lower portion of the barrel (4), an electromagnetic valve (13) is arranged on the filter residue pump feeding pipeline (14), the end of the filter residue pump feeding pipeline (14) is divided into two parts, one end of the filter residue pump feeding pipeline is connected with an air inlet pipeline (15), an air inlet valve (16) is arranged on the air inlet pipeline (15), the other end of the filter residue pump feeding pipeline is connected with a pneumatic diaphragm pump (17), and a filter residue conveying pipeline (18) is arranged.
2. A filter for the recovery of spent lithium batteries according to claim 1, characterized in that: a sealing gasket (2) is arranged between the cylinder body (4) and the cylinder cover (21).
3. A filter for the recovery of spent lithium batteries according to claim 1, characterized in that: filter core skeleton (22) top is equipped with first clamp (3), and the below is equipped with second clamp (6), fixes filtering bag (5) upper and lower position through first clamp (3) and second clamp (6), fixes it on filter core skeleton (22).
4. A filter for the recovery of spent lithium batteries according to claim 1, characterized in that: the filter element framework (22) is sealed between the bottom and the barrel (4) by a first sealing flat gasket (7) and locked by a locking sleeve (9).
5. A filter for the recovery of spent lithium batteries according to claim 1, characterized in that: and two ends of an electromagnetic valve on the filter residue pump inlet pipeline (14) are connected with a flange joint (11) by flanges, and are sealed by a third sealing flat gasket (12).
6. A filter for the recovery of spent lithium batteries according to claim 5, characterized in that: the flange joint (11) is in threaded connection with a pipe at the bottom of the cylinder body (4) and is used for sealing the flat gasket (10) by a second sealing gasket.
Technical Field
The invention belongs to the field of solid-liquid separation in the industries of chemical industry, light industry, pharmacy, food, environmental protection, secondary recycling of waste lithium batteries and the like, and particularly relates to a filter which is used for on-line filtering, automatic solid-liquid separation and automatic conveying of filtrate and filter residues and is required by the technical field of chemical wet recovery and regeneration of waste lithium batteries.
Background
At present, a filter in the market utilizes porous filtration to realize solid-liquid separation, such as a bag filter, a belt filter, a filter press, a vacuum filter, a disc filter, a ceramic filter and the like, although solid-liquid separation and filtrate conveying can be realized, filter residue after separation cannot be automatically cleaned and conveyed to a container for storing the filter residue or other places for further treatment; although the horizontal spiral discharge sedimentation centrifuge and the stacked spiral sludge dewatering machine can realize solid-liquid separation, filtrate conveying and filter residue automatic cleaning and conveying are carried out by respective conveying pumps and other conveying equipment, so that the filtrate and the filter residue are conveyed to a storage container or other storage places for further treatment; and the equipment structure is complicated, the floor area is large, the maintenance and the repair are inconvenient, and the cost is high.
Although the existing automatic slag discharging filter in the market can automatically clean and discharge filter residues, the realization process is complex, time and labor are wasted, and the labor cost is high.
When the chemical wet method of the waste lithium battery is used for recycling and regenerating, for example, when the aluminum is removed by alkali dissolution, the aluminum and the aluminum oxide are dissolved in the physically separated mixture of the positive electrode and the negative electrode of the waste lithium battery by adopting 10 percent NaOH solution, the filter residue is taken after filtration and is automatically sent into an acid dissolution carbon removal tank for treatment,by sulfuric acid and reducing agent H2O2The mixed solution can be leached, carbon (graphite) is filtered and removed, the carbon (graphite) is sent to a carbon storage tank, and the obtained leachate is sent to the next treatment container for treatment. In mass production, the solid and liquid of the filter are automatically separated, and the filtrate and the filter residue are automatically conveyed to the next treatment container for treatment.
Disclosure of Invention
The invention aims to provide a filter for on-line continuous filtration, automatic solid-liquid separation, automatic conveying of filtrate and filter residue to the next treatment container for treatment, and an automatic conveying method for continuous filtration, automatic solid-liquid separation, cleaning, solid concentration and automatic conveying of filtrate and filter residue.
In order to achieve the purpose, the invention adopts the following technical scheme:
a filter for recycling waste lithium batteries comprises a support (8), wherein a barrel body (4) is arranged on the support (8), a barrel cover (21) is arranged on the barrel body (4), a filter element framework (22) is arranged in the barrel body (4), a filter bag (5) is sleeved on the filter element framework (22), a liquid inlet pipe (1) is arranged on the barrel cover (21), a valve is arranged on the liquid inlet pipe (1), an outlet of the liquid inlet pipe (1) is positioned in the filter bag (5), and a filtrate conveying pipeline (19) is arranged at the bottom of the barrel body (4);
the support (8) is also provided with a filter pump (23), the filter pump (23) is connected with a compressed air pipeline (20), and a valve is arranged on the compressed air pipeline (20);
the filter residue pump feeding device is characterized in that a filter residue pump feeding pipeline (14) is connected to the lower portion of the barrel (4), an electromagnetic valve (13) is arranged on the filter residue pump feeding pipeline (14), the end of the filter residue pump feeding pipeline (14) is divided into two parts, one end of the filter residue pump feeding pipeline is connected with an air inlet pipeline (15), an air inlet valve (16) is arranged on the air inlet pipeline (15), the other end of the filter residue pump feeding pipeline is connected with a pneumatic diaphragm pump (17), and a filter residue conveying pipeline (18) is arranged.
Preferably, a sealing gasket (2) is arranged between the cylinder body (4) and the cylinder cover (21).
Preferably, filter core skeleton (22) top is equipped with first clamp (3), and the below is equipped with second clamp (6), and position about fixed filter bag (5) is crossed through first clamp (3) and second clamp (6), fixes it on filter core skeleton (22).
Preferably, the bottom of the filter element framework (22) and the barrel (4) are sealed by a first sealing flat gasket (7) and locked by a locking sleeve (9).
Preferably, two ends of the electromagnetic valve on the filter residue pump inlet pipeline (14) are connected with the flange joint (11) through flanges, and the filter residue pump inlet pipeline is sealed by a third sealing flat gasket (12), so that the maintenance, the repair or the replacement of the pipeline, the manual ball valve and the electromagnetic valve are facilitated.
Preferably, the flange joint (11) is in threaded connection with a pipe at the bottom of the cylinder body (4) and is provided with a second sealing flat gasket (10).
The invention also relates to a continuous filtering and conveying method of the filter for recycling the waste lithium batteries, which comprises the following steps:
step 1, extracting a solid-liquid mixture in an alkali-dissolving aluminum removal tank at an inlet of a filter pump (23), opening a valve on a pipeline, simultaneously opening a valve of an outlet of the filter pump, closing an electromagnetic valve (13) on a filter residue inlet pump pipeline (14), closing a valve on a compressed air pipeline (20), starting the filter pump (23) to extract the solid-liquid mixture with the equivalent diameter of solid-phase particles to be filtered being 10 mu m-4.5 mm and the feed water content being 50% -99% for solid-liquid separation, filtering and solid-liquid separation under the action of the pressure of the filter pump (23) being 0.2-0.4 MPa, filtering liquid through a filter bag, outputting the filtrate from a filtrate conveying pipeline (19) under the action of excess pressure, and leaving the filtrate in a filter bag (5), wherein the water content of the filter residue is 48% -;
step 2, stopping the operation of a filter pump (23), closing a valve on a solid-liquid mixture pipeline in an alkali-soluble aluminum tank, an outlet valve of the filter pump (23) and an electromagnetic valve (13) on a filter residue inlet pump pipeline (14) at an inlet of the filter pump (23), opening a valve of a compressed air pipeline (20), filling compressed air with the pressure of 0.4-0.6 MPa into a filter bag (5) and a filter element framework (22) on the bag filter to dehydrate filter residues in the filter bag (5), filtering water, outputting the filtrate from a filtrate conveying pipeline (19) under the action of residual pressure, and still retaining the filter residues in the filter bag, wherein the water content of the filter residues is 46-70%, and the solid particles are 10 um-4.5 mm;
step 3, closing a valve of the compressed air pipeline (20), and manually and automatically opening an air inlet valve (16) and an electromagnetic valve (13) on a filter residue inlet pump pipeline (14); starting a filter residue conveying pneumatic diaphragm pump (17), and conveying the filter residue with the equivalent diameter of solid-phase particles of 10-4.5 mm into an acid-dissolving carbon removal tank or other storage tanks for next procedure treatment; the pressure of compressed air used by the pneumatic diaphragm pump is 0.3-0.4 MPa.
And (3) opening a valve on a clean water pipeline of the cleaning tank after the inlet of the filter pump (23) extracts the alkali-soluble aluminum removal tank, closing the valve on the pipeline of the solid-liquid mixture in the alkali-soluble aluminum removal tank after the inlet of the filter pump extracts the clean water, cleaning the filter bag by extracting the clean water according to the above operation steps, outputting the filtrate from a filtrate conveying pipeline (19), and sending the filter residue into an acid-soluble carbon removal tank for treatment or other storage tanks for next procedure treatment.
The invention has the beneficial effects that:
1. the filter for recycling the waste lithium batteries can realize on-line continuous filtration, automatic solid-liquid separation and automatic conveying of filtrate and filter residues to a next treatment container for treatment, and can automatically realize cleaning and automatic concentration of solids.
2. The filter for recovering the waste lithium batteries has the advantages of temperature resistance, pressure resistance, corrosion resistance, no leakage, and convenient cleaning, maintenance, repair and replacement.
3. The filter for recycling the waste lithium batteries has the advantages of simple structure, reliability, safety, environmental protection, energy conservation, low cost and convenient operation.
4. The filter for recycling the waste lithium batteries has the advantages that continuous filtering, automatic solid-liquid separation and concentration are realized, the action sequence and time of automatic conveying and cleaning of filtrate and filter residues can be manually and automatically controlled, continuous filtering, separation and concentration are realized, automatic conveying and cleaning of the filtrate and the filter residues are convenient for realizing automatic production, and the working intensity of workers is reduced.
Drawings
FIG. 1 is an example filter diagram;
FIG. 2 is a sectional view of an example (FIG. 1);
fig. 3 is a partial view a.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1, 2 and 3, the filter for recycling waste lithium batteries comprises a liquid inlet pipe 1, a sealing gasket 2, a first clamp 3, a cylinder 4, a filter bag 5, a second clamp 6, a first sealing flat gasket 7, a support 8, a locking sleeve 9, a second sealing
The filter bag is characterized in that a barrel 4 is arranged on the support 8, a barrel cover 21 is arranged on the barrel 4, a filter element framework 22 is arranged in the barrel 4, a filter bag 5 is sleeved on the filter element framework 22, a liquid inlet pipe 1 is arranged on the barrel cover 21, a valve is arranged on the liquid inlet pipe 1, the outlet of the liquid inlet pipe 1 is positioned in the filter bag 5, and a filtrate conveying pipeline 19 is arranged at the bottom of the barrel 4;
a filter pump 23 is further arranged on the support 8, the filter pump 23 is connected with a compressed air pipeline 20, and a valve is arranged on the compressed air pipeline 20;
the filter residue pump inlet pipeline 14 is connected to the lower portion of the barrel 4, the
And a sealing gasket 2 is arranged between the cylinder body 4 and the cylinder cover 21.
Filter core skeleton 22 top is equipped with first clamp 3, and the below is equipped with second clamp 6, and position about filter bag 5 is fixed through first clamp 3 and second clamp 6, fixes it on filter core skeleton 22.
The bottom of the filter element framework 22 and the barrel 4 are sealed by a first sealing flat gasket 7 and locked by a locking sleeve 9.
The filter residue enters the flange and connects 11 with flange at both ends of the electromagnetic valve on the pump pipeline 14 pipeline, seal with the third sealed
The
The liquid inlet pipe 1, the cylinder 4, the filter bag 5, the
The pipe connectors and the pipes are all welded by hot melting, the welding is firm and reliable, the deformation is avoided, and the leakage does not exist under 0.6MPa in a pressure test.
Movable joints are arranged on the compressed air pipeline 20, the air inlet pipeline 15, the filter residue conveying pipeline 18 and the filtrate conveying pipeline 19 of the filter for recycling the waste lithium batteries;
the connection of each pipeline and the two ends of the valve adopts a manual ball valve and an electromagnetic valve which are provided with movable joints at the two ends.
The invention also relates to a continuous filtering and conveying method of the filter for recycling the waste lithium batteries, which comprises the following steps:
step 1, extracting a solid-liquid mixture in an alkali-dissolving aluminum removal tank at an inlet of a filter pump 23, opening a valve on a pipeline, simultaneously opening a valve at the outlet of the filter pump, closing an
step 2, stopping the operation of the filter pump 23, closing a valve on a solid-liquid mixture pipeline in the alkali-soluble aluminum tank, an outlet valve of the filter pump 23 and an
step 3, closing a valve of the compressed air pipeline 20, and manually and automatically opening an air inlet valve 16 and an
And (3) opening a valve on a clean water pipeline of the cleaning tank after the inlet of the filter pump 23 is used for extracting the alkali-soluble aluminum removal tank, closing the valve on the clean water pipeline of the cleaning tank after the inlet of the filter pump is used for extracting the solid-liquid mixture in the alkali-soluble aluminum removal tank, extracting clean water, cleaning the filter bag, outputting the filtrate from a filtrate conveying pipeline 19, and sending the filter residue into an acid-soluble carbon removal tank for treatment or other storage tanks for treatment of the next procedure.
Based on the embodiment 1 of the continuous filtering and separating and automatic filtrate and filter residue conveying method for the waste lithium battery recovery filter, the method comprises the following steps:
a. step 1, opening an electromagnetic valve on a solid-liquid mixture pipeline in an alkali-soluble aluminum removal tank at an inlet of a filter pump, simultaneously manually and automatically opening an electromagnetic valve at an outlet of the filter pump, closing an electromagnetic valve of a filter residue pump pipeline and a compressed air pipeline, starting the filter pump to extract a solid-liquid mixture with the equivalent diameter of solid-phase particles to be filtered being 1-4.5 mm and the water content of a feed material being 50%, carrying out solid-liquid separation on the solid-liquid mixture in the alkali-soluble aluminum removal tank when the alkali-soluble aluminum removal tank is recycled and regenerated by a chemical wet method for the anode and cathode mixed materials of waste lithium batteries, enabling the solid-liquid mixture to enter a filter bag and a filter element framework of the bag filter, filtering and carrying out solid-liquid separation under the action of the pump pressure of 0.4 MPa.
b. And 2, stopping the filter pump, closing an electromagnetic valve on a solid-liquid mixture pipeline, a filter pump outlet electromagnetic valve and a filter residue inlet pump pipeline in the alkali solution aluminum removal tank by an inlet of the filter pump, manually and automatically opening a compressed air pipeline electromagnetic valve, filling 0.6MPa compressed air into a filter bag and a filter element framework on the bag filter with the filtering precision of 50 mu m to dehydrate filter residues in the filter bag, filtering water, allowing the filtrate to flow into a wastewater collecting tank or other storage tanks under the action of residual pressure, and remaining the filter residues in the filter bag, wherein the water content of the filter residues is 46 percent and the solid particles are 50 mu m-4.5 mm.
c. And 3, closing the electromagnetic valve of the compressed air pipeline, and manually and automatically opening the air inlet valve and the electromagnetic valve of the filter residue inlet pump pipeline. And starting the filter residue conveying pneumatic diaphragm pump, and conveying the filter residue with the equivalent diameter of the solid-phase particles of 50-4.5 mm into an acid-soluble carbon removal tank or other storage tanks for next procedure treatment. The pressure of compressed air used in the pneumatic diaphragm pump was 0.4 MPa.
d. And 4, opening an electromagnetic valve on a clean water pipeline of the cleaning tank after the alkali-soluble aluminum removal tank is extracted from the inlet of the filter pump, closing the electromagnetic valve on the clean water pipeline of the solid-liquid mixture in the alkali-soluble aluminum removal tank, extracting clean water, cleaning the filter bag, returning the filter liquor to the cleaning tank, and feeding filter residues into an acid-soluble carbon removal tank or other storage tanks for next procedure treatment.
Based on the embodiment 2 of the continuous filtering and separating and automatic filtrate and filter residue conveying method for the waste lithium battery recovery filter, the method comprises the following steps:
a. step 1, opening an electromagnetic valve on a solid-liquid mixture pipeline in an alkali-soluble aluminum removal tank at an inlet of a filter pump, simultaneously manually and automatically opening an electromagnetic valve at an outlet of the filter pump, closing an electromagnetic valve of a filter residue pump pipeline and a compressed air pipeline, starting the filter pump to extract a solid-liquid mixture with the equivalent diameter of solid-phase particles to be filtered being 1-4.5 mm and the water content of a feeding material being 74.5%, carrying out solid-liquid separation on the solid-liquid mixture in the alkali-soluble aluminum removal tank when the alkali-soluble aluminum-cathode mixture is recovered and regenerated by a chemical wet method, such as the solid-liquid mixture enters a filter bag and a filter element framework of the bag filter when the alkali-soluble aluminum-cathode mixture is recovered and regenerated by a positive-negative electrode mixture of a waste lithium battery, filtering and solid-liquid separation.
b. And 2, stopping the filter pump, closing an electromagnetic valve on a solid-liquid mixture pipeline, a filter pump outlet electromagnetic valve and a filter residue inlet pump pipeline in the alkali solution aluminum removal tank by an inlet of the filter pump, manually and automatically opening a compressed air pipeline electromagnetic valve, filling 0.5MPa compressed air into a filter bag and a filter element framework on the bag filter with the filtering precision of 30 mu m to dehydrate filter residues in the filter bag, filtering water, allowing the filtrate to flow into a wastewater collecting tank or other storage tanks under the action of residual pressure, and remaining the filter residues in the filter bag, wherein the filter residues contain 58 percent of water and 30 mu m-4.5 mm of solid particles.
c. And 3, closing the electromagnetic valve of the compressed air pipeline, and manually and automatically opening the air inlet valve and the electromagnetic valve of the filter residue inlet pump pipeline. And starting the filter residue conveying pneumatic diaphragm pump, and conveying the filter residue with the equivalent diameter of the solid-phase particles of 30-4.5 mm into an acid-soluble carbon removal tank or other storage tanks for next procedure treatment. The pressure of compressed air used in the pneumatic diaphragm pump was 0.35 MPa.
d. And 4, opening an electromagnetic valve on a clean water pipeline of the cleaning tank after the alkali-soluble aluminum removal tank is extracted from the inlet of the filter pump, closing the electromagnetic valve on the clean water pipeline of the solid-liquid mixture in the alkali-soluble aluminum removal tank, extracting clean water, cleaning the filter bag, returning the filter liquor to the cleaning tank, and feeding filter residues into an acid-soluble carbon removal tank or other storage tanks for next procedure treatment.
Based on the embodiment 3 of the continuous filtering and separating and automatic filtrate and filter residue conveying method for the waste lithium battery recovery filter, the method comprises the following steps:
a. step 1, opening an electromagnetic valve on a solid-liquid mixture pipeline in an alkali-soluble aluminum removal tank at an inlet of a filter pump, simultaneously manually and automatically opening an electromagnetic valve at an outlet of the filter pump, closing an electromagnetic valve of a filter residue pump pipeline and a compressed air pipeline, starting the filter pump to extract a solid-liquid mixture with the equivalent diameter of solid-phase particles to be filtered being 1-4.5 mm and the water content of a feed material being 99%, carrying out solid-liquid separation on the solid-liquid mixture in the alkali-soluble aluminum removal tank when the alkali-soluble aluminum removal tank is recycled and regenerated by a chemical wet method for the anode and cathode mixed materials of the waste lithium battery, enabling the solid-liquid mixture to enter a filter bag and a filter element framework of the bag filter, filtering and carrying out solid-liquid separation under the action of the pump pressure of 0.2 MPa.
b. And 2, stopping the filter pump, closing an electromagnetic valve on a solid-liquid mixture pipeline, a filter pump outlet electromagnetic valve and a filter residue inlet pump pipeline in the alkali solution aluminum removal tank by an inlet of the filter pump, manually and automatically opening a compressed air pipeline electromagnetic valve, filling 0.4MPa compressed air into a filter bag and a filter element framework on the bag filter with the filtering precision of 10 mu m to dehydrate filter residues in the filter bag, filtering water, allowing the filtrate to flow into a wastewater collecting tank or other storage tanks under the action of residual pressure, and remaining the filter residues in the filter bag, wherein the water content of the filter residues is 70 percent and the solid particles are 10 mu m-4.5 mm.
c. And 3, closing the electromagnetic valve of the compressed air pipeline, and manually and automatically opening the air inlet valve and the electromagnetic valve of the filter residue inlet pump pipeline. And starting the filter residue conveying pneumatic diaphragm pump, and conveying the filter residue with the equivalent diameter of the solid-phase particles of 10-4.5 mm into an acid-soluble carbon removal tank or other storage tanks for next procedure treatment. The pressure of compressed air used in the pneumatic diaphragm pump was 0.3 MPa.
d. And 4, opening an electromagnetic valve on a clean water pipeline of the cleaning tank after the alkali-soluble aluminum removal tank is extracted from the inlet of the filter pump, closing the electromagnetic valve on the clean water pipeline of the solid-liquid mixture in the alkali-soluble aluminum removal tank, extracting clean water, cleaning the filter bag, returning the filter liquor to the cleaning tank, and feeding filter residues into an acid-soluble carbon removal tank or other storage tanks for next procedure treatment.
The above-mentioned examples are only for describing the preferred embodiments of the present invention and are not to be construed as limiting the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the design of the present invention shall fall within the protection scope defined by the claims of the present invention. In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
- 上一篇：一种医用注射器针头装配设备
- 下一篇：一种用于废旧锂电池回收的过滤机及过滤和输送方法