Filtering equipment for chemical product quality detection and using method thereof

Abstract

The present invention relates to the technical field of filtration equipment, specifically a filtration equipment for chemical product quality inspection, comprising a shell assembly, a filter assembly, a flushing assembly and a collecting assembly, wherein the shell assembly comprises an outer shell, the filter assembly is arranged inside the outer shell, and is used to extract the chemical product liquid into the inner shell and discharge it from the inner shell after filtration, the flushing assembly is arranged inside the outer shell and on the upper side of the filter assembly, and is used to flush the filter part of the filter assembly to avoid clogging, and the collecting assembly is arranged on the top of the outer shell, and is used to collect the filtrate discharged from the inner shell. The reciprocating linear motion of the conduit in the filter assembly alleviates the accumulation of solid impurities, and the filtration stability is higher. The flushing assembly enables the half-shell environmentally friendly filter cylinder to form a cylindrical structure similar to that with an uneven inner wall, making it easy to flush alternately without consuming filtrate, thereby improving the filtration efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of filtering equipment, in particular to a filtering equipment for chemical product quality detection and a use method thereof. Background Art

[0002] During the production process of chemical products, quality inspection is usually required to ensure the controllability of production. During quality inspection, in order to reduce the interference of solid matter in the mixed liquid, the mixed liquid usually needs to be filtered first to achieve solid-liquid separation. During the filtration operation, filter clogging is an inevitable problem, which seriously affects the efficiency of the filtration operation.

[0003] At present, backwash filtration equipment is commonly used in the chemical industry to deal with the above-mentioned filter clogging problem. However, it has the following disadvantages in the use of chemical product quality testing. On the one hand, the backwash mechanism will consume part of the filtrate to flush solid impurities, thereby reducing the filtrate acquisition ratio and lowering the filtration efficiency. On the other hand, backwash filtration equipment is usually large and is not suitable for the field of chemical product quality testing that only requires small batches of filtrate. Summary of the Invention

[0004] In order to solve the problems that commonly used backwash filtration equipment needs to consume part of the filtrate to flush solid impurities, thereby reducing the filtrate acquisition ratio and lowering the filtration efficiency, and that this type of equipment is usually large and not suitable for the field of chemical product quality testing that only requires small batches of filtrate, the present invention provides a filtration equipment for chemical product quality testing and a method of using the same to solve the above problems.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A filtering device for chemical product quality testing includes a housing assembly, a filter assembly, a flushing assembly, and a collection assembly. The housing assembly includes a housing. The filter assembly is disposed within the housing and is used to extract chemical product liquid into the housing and discharge it from the housing after filtration. The flushing assembly is disposed within the housing and above the filter assembly and is used to flush the filter portion of the filter assembly to prevent clogging. The collection assembly is disposed at the top of the housing and is used to collect filtrate discharged from the housing.

[0007] An upper sealing plate and a lower sealing plate are sequentially installed on the inner upper side of the housing from top to bottom, wherein holes are provided on both sides of the inner side of the upper sealing plate, and through holes are provided on both sides of the inner side of the lower sealing plate at positions corresponding to the holes;

[0008] The filter assembly includes two filter cylinders respectively installed at the top ports of the holes, and a conduit provided inside the filter cylinder. The side of the filter cylinder is provided with filter meshes all around. A guide cone cover is installed above the top port of the conduit. The outside of the conduit corresponds to the inside of the through hole, and the conduit can slide relative to the through hole. The bottom ports of the conduit are connected to hoses. The bottom ports of the hoses are connected by a tee pipe. The remaining pipe mouth of the tee pipe is connected to a first water pump. The inlet of the first water pump is connected to a liquid inlet pipe.

[0009] The filter assembly further includes a first motor mounted in the middle of the bottom of the lower sealing plate, a shaft mounted on the driving end of the first motor, a cam mounted on the outside of the shaft, a pair of limiting wheels rotatably connected to the lower side of the guide tube near the cam, and the two side edges of the cam correspondingly fit between the two pairs of limiting wheels;

[0010] The filter assembly further comprises a second water pump disposed on the top of the housing, wherein the inlet of the second water pump is connected to a drain pipe;

[0011] The flushing assembly includes a partition installed between the upper sealing plate and the lower sealing plate, and a drain valve pipe installed above both sides of the shell, wherein the partition is located at the center of the gap between the upper sealing plate and the lower sealing plate, and divides the gap into two chambers, and the drain valve pipes on both sides are respectively connected to the two chambers;

[0012] The flushing assembly also includes two pairs of half-shells respectively embracing the outside of the filter cylinder on both sides, each pair of the half-shells can form a complete cylindrical structure when closed, and the inner wall of the cylindrical structure can be correspondingly fitted to the outer side of the filter cylinder when closed, and guide rods are installed on the upper and lower sides of the outer sides of the half-shells, one end of the guide rods respectively passes through the side walls of the shell, and the outer sides of the half-shells are respectively provided with wedges on the outside of both sides of the shell, and the upper and lower sides of the inner sides of the wedges are correspondingly installed on one end of the guide rods;

[0013] The flushing assembly further includes a dual-shaft motor installed above the interior of the housing, and the dual-shaft motor is located between the filter cylinders on both sides, and both driving ends of the dual-shaft motor are located outside the housing and are each equipped with a rocker, and one end of the rocker is externally rotatably connected to a roller;

[0014] The collecting assembly includes a connecting seat arranged on one side of the second water pump, a threaded sleeve is installed in the middle of the top of the connecting seat, a barbed tube connected to the outlet of the second water pump is installed at the center of the top center of the connecting seat, located at the center of the threaded sleeve, the collecting assembly also includes a threaded tube that can be threadedly connected to the inside of the threaded sleeve, a rubber stopper that can be pierced by the barbed tube is installed inside the threaded tube, a telescopic bottle is installed at the top of the threaded tube, and a sealing cover is threadedly connected to the outside of the top port of the telescopic bottle.

[0015] As a preferred solution of the present invention, the shell assembly further includes a top cover, the bottom of which is mounted on the top port of the shell.

[0016] As a preferred solution of the present invention, the housing assembly further includes a bottom cover, the top of which is mounted on the bottom port of the housing.

[0017] As a preferred solution of the present invention, the housing assembly further comprises a control panel installed in the middle of one side of the shell, and the control panel is connected to the first motor, the first water pump, the second water pump, the drain valve pipe and the dual-axis motor through signals.

[0018] As a preferred solution of the present invention, a handle is installed in the middle of one side of the housing outside the control panel.

[0019] As a preferred solution of the present invention, the bottom of the second water pump is installed on one side of the top of the top cover, and the bottom port of the drain pipe passes through the top cover and extends to the interior of the housing.

[0020] As a preferred solution of the present invention, the bottom of the first water pump is installed on one side of the top of the bottom cover, and the bottom port of the liquid inlet pipe passes through the bottom cover and extends to the outside of the housing.

[0021] As a preferred solution of the present invention, the flushing assembly further includes two protective shells, which are respectively installed above the two sides of the shell.

[0022] As a preferred solution of the present invention, the bottom of the connecting seat is installed on the other side of the top of the top cover.

[0023] A method for using a filtering device for chemical product quality testing comprises the following steps:

[0024] Step 1: Screw the compressed telescopic bottle into the interior of the threaded sleeve through the threaded tube. At this time, the thorn tube will pierce the rubber stopper and extend into the interior of the telescopic bottle;

[0025] Step 2: Hold the handle and extend the bottom end of the liquid inlet pipe into the chemical product liquid. Control the operation of the first water pump and the first motor through the control panel to draw the chemical product liquid into the interior of the filter drum through the liquid inlet pipe, the tee pipe, and the conduit. Under the action of pressure, the chemical product liquid will be filtered through the filter drum to become filtrate. At the same time, the conduits on both sides realize reciprocating linear motion under the cooperation of the cam and the limiting wheel, so that the chemical product liquid sprayed from the guide cone cover to the sides will realize reciprocating linear motion inside the filter drum. The reciprocating impact of the chemical product liquid alleviates the accumulation of solid impurities on the inner wall of the filter drum.

[0026] Step 3: Control the second water pump through the control panel to pump the filtrate into the telescopic bottle through the discharge pipe. As the pumping continues, the telescopic bottle gradually expands under the internal pressure until the desired filtrate is obtained.

[0027] Step 4: During filtration, the dual-axis motor is controlled by the control panel to work, thereby synchronously driving the swing arm to deflect to one side. The roller presses the wedge block on this side, so that the two half-shells on this side are closed and tightly attached to the outside of the filter cylinder on this side. At the same time, the control panel controls the opening of the sewage valve pipe on this side. At this time, since the filter cylinder on this side is sealed, the chemical product liquid sprayed from the side conduit will rebound after impacting the inner wall of the filter cylinder and take away the accumulated solid impurities. Then, this part of the chemical product liquid will be discharged from the sewage valve pipe on this side. In conjunction with the reciprocating linear motion of the conduit, the inner wall of the filter cylinder on this side can be flushed by relying on the above-mentioned reciprocating impact to avoid blockage.

[0028] Step 5. After replacing the new telescopic bottle, repeat steps 1 to 4 to achieve a new round of filtration.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] In the present invention, the chemical product liquid is extracted into the interior of the filter cylinder through the filtering component, and at the same time, the conduit realizes the reciprocating linear motion of the conduit under the cooperation of the cam and the limiting wheel, and then the sprayed chemical product liquid is filtered into filtrate under the action of pressure. The reciprocating impact of the above-mentioned chemical product liquid on the filter cylinder can, on the one hand, impact the accumulated solid impurities, thereby alleviating the accumulation of solid impurities on the inner wall. On the other hand, the reciprocating impact means that the sprayed liquid is filtered at different places on the inner wall of the filter cylinder at all times. By constantly changing the filtering position, the accumulation of solid impurities can also be alleviated, further extending the time for the filter cylinder to be completely blocked, and the filtration stability is higher.

[0031] In the present invention, the roller in the flushing assembly presses the wedge block so that the two half shells are closed and tightly attached to the outer side of the filter cylinder on that side, which is equivalent to the filter cylinder becoming a cylindrical structure with an uneven inner wall. Therefore, the sprayed chemical product liquid will rebound after impacting the inner wall of the filter cylinder and take away the accumulated solid impurities. In conjunction with the reciprocating linear motion of the conduit, the inner wall of the filter cylinder on that side can be flushed by relying on the above-mentioned reciprocating impact to avoid blockage. While the filter cylinder on one side is being flushed, the filter cylinder on the other side can still maintain the filtering working state. Alternating flushing can achieve stable and uninterrupted filtration operations. It can be seen from the above-mentioned flushing scheme that the flushing scheme of the filter cylinder is different from the existing backwashing filtration equipment, and does not require the consumption of the filtrate that has been filtered. It forms an organic combination with the filtration route of the liquid, thereby improving the filtration efficiency.

[0032] In the present invention, through the combination and organic coordination of the shell component, the filter component, the flushing component and the collection component, the equipment has high filtration stability, a small size and is easy to carry and use. It is suitable for the field of chemical product quality inspection that only requires a small batch of filtrate. In some usage scenarios, it can also serve as a sampling device, avoiding separate sampling operations, improving work efficiency, and having a wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0034] Figure 2 for Figure 1 Another perspective diagram of the structure;

[0035] Figure 3 Schematic diagram of the internal structure of the housing of the present invention;

[0036] Figure 4 This is a schematic structural diagram of the guide cone cover of the present invention;

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of the flushing component of the present invention;

[0038] Figure 6 for Figure 5 A three-dimensional schematic diagram of the middle part structure;

[0039] Figure 7 Schematic diagram of the structure of the installation cavity of the dual-axis motor inside the housing according to an embodiment of the present invention;

[0040] Figure 8 for Figure 1 Schematic diagram of the structure after removing the protective shell;

[0041] Figure 9 This is a schematic diagram of the decomposition structure of the collection component of the present invention.

[0042] Among them, 1. Shell assembly; 101. Shell; 102. Top cover; 103. Upper sealing plate; 104. Lower sealing plate; 105. Bottom cover; 106. Control panel; 107. Handle; 2. Filter assembly; 201. Filter cylinder; 202. Conduit; 203. Guide cone cover; 204. Hose; 205. First motor; 206. Cam; 207. Limit wheel; 208. T-tube; 209. First water pump; 210. Liquid inlet pipe; 211. 1. Second water pump; 212. Drain pipe; 3. Flushing assembly; 301. Partition; 302. Drain valve pipe; 303. Half shell; 304. Guide rod; 305. Wedge; 306. Dual-axis motor; 307. Rocker; 308. Roller; 309. Protective shell; 4. Collecting assembly; 401. Connecting seat; 402. Threaded sleeve; 403. Barbed tube; 404. Telescopic bottle; 405. Sealing cap; 406. Threaded tube; 407. Rubber stopper. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0044] like Figure 1-9 As shown, an embodiment of the present invention provides a filtering device for chemical product quality inspection, including a shell component 1, a filter component 2, a flushing component 3 and a collection component 4. The shell component 1 includes an outer shell 101, and the filter component 2 is arranged inside the outer shell 101, and is used to extract the chemical product liquid into the inner shell 101 and discharge it from the inner shell 101 after filtration. The flushing component 3 is arranged inside the outer shell 101 and is located on the upper side of the filter component 2, and is used to flush the filter part of the filter component 2 to avoid blockage. The collection component 4 is arranged at the top of the outer shell 101, and is used to collect the filtrate discharged from the inner shell 101.

[0045] Through the above-mentioned technical means, this solution avoids the disadvantages of the backwash filtration equipment commonly used in the existing chemical industry in the use of chemical product quality testing, namely, on the one hand, backwashing will consume part of the filtrate, reducing the filtration efficiency; on the other hand, the equipment is large and not suitable for the field of chemical product quality testing that only requires small batches of filtrate. At the same time, the filtration equipment for chemical product quality testing under this solution is small in size and has high filtration stability. In some usage scenarios, it can also serve as a sampling equipment, and has a wider applicability.

[0046] Specifically, in this embodiment, refer to Figure 3An upper sealing plate 103 and a lower sealing plate 104 are installed on the upper inner side of the housing 101 from top to bottom, wherein holes are provided on both sides of the inner portion of the upper sealing plate 103, and through holes are provided on both sides of the inner portion of the lower sealing plate 104 at positions corresponding to the holes.

[0047] Furthermore, the filter assembly 2 includes two filter cylinders 201 respectively installed at the top ports of the hole, and a conduit 202 provided inside the filter cylinder 201. The side of the filter cylinder 201 is provided with filter meshes all around, and a guide cone cover 203 is installed above the top port of the conduit 202. Figure 4 The outside of the conduit 202 corresponds to the inside of the through hole, and the conduit 202 can slide relative to the through hole. The bottom ports of the conduit 202 are connected to the hose 204, and the bottom ports of the hose 204 are connected by a tee pipe 208. The remaining pipe mouth of the tee pipe 208 is connected to the first water pump 209, and the inlet of the first water pump 209 is connected to the liquid inlet pipe 210.

[0048] Furthermore, the filter assembly 2 also includes a first motor 205 installed in the middle of the bottom of the lower sealing plate 104. The driving end of the first motor 205 is equipped with a shaft, and a cam 206 is installed on the outside of the shaft. A pair of limiting wheels 207 are rotatably connected to the lower side of the conduit 202 close to the cam 206, and the two side edges of the cam 206 are correspondingly matched between the two pairs of limiting wheels 207.

[0049] In this embodiment, the chemical product liquid is drawn into the interior of the filter drum 201 through the liquid inlet pipe 210, the three-way pipe 208, and the conduit 202. Under the action of pressure, the chemical product liquid will be filtered through the filter drum 201 to become filtrate. At the same time, the conduits 202 on both sides realize reciprocating linear motion under the cooperation of the cam 206 and the limiting wheel 207, so that the chemical product liquid sprayed from the guide cone cover 203 to the sides will realize reciprocating linear motion inside the filter drum 201. The reciprocating impact of the above-mentioned chemical product liquid can, on the one hand, impact the accumulated solid impurities, thereby alleviating the accumulation of solid impurities on the inner wall of the filter drum 201. On the other hand, the reciprocating impact means that the sprayed chemical product liquid is filtered at different places on the inner wall of the filter drum 201 at all times. By constantly changing the filtering position, the accumulation of solid impurities can also be alleviated, further extending the time for the filter drum 201 to be completely blocked, and the filtration stability is higher.

[0050] Further, refer to Figure 1-2 The filter assembly 2 further includes a second water pump 211 disposed on the top of the housing 101 , and an inlet of the second water pump 211 is connected to a drain pipe 212 .

[0051] In this embodiment, reference Figure 5The flushing assembly 3 includes a partition 301 installed between the upper sealing plate 103 and the lower sealing plate 104, and a drain valve pipe 302 installed above both sides of the shell 101, wherein the partition 301 is located at the center of the gap between the upper sealing plate 103 and the lower sealing plate 104, and divides the gap into two chambers, and the drain valve pipes 302 on both sides are respectively connected to the two chambers.

[0052] In this embodiment, again referring to Figure 5 , and refer to Figure 6 The flushing assembly 3 also includes two pairs of half shells 303 that respectively embrace the outside of the filter cylinders 201 on both sides. Each pair of half shells 303 can form a complete cylindrical structure when closed, and the inner wall of the cylindrical structure can correspond to the outer side of the filter cylinder 201 when closed. Guide rods 304 are installed on the upper and lower outer surfaces of the half shells 303, and one end of the guide rods 304 passes through the side walls of the outer shell 101 respectively. The outer side of the half shells 303 is located on both sides of the outer shell 101 and is provided with wedges 305. The upper and lower sides of the inner sides of the wedges 305 are correspondingly installed on one end of the guide rods 304.

[0053] Further, refer to Figure 8 The flushing assembly 3 further includes a dual-axis motor 306 mounted above the interior of the housing 101, and the dual-axis motor 306 is located between the filter cylinders 201 on both sides. Figure 7 As can be seen in the figure, there is a cavity inside the housing 101 for installing the dual-axis motor 306. The two driving ends of the dual-axis motor 306 are located outside the housing 101 and are both equipped with a rocker 307. One end of the rocker 307 is rotatably connected to the outside of the roller 308.

[0054] In this embodiment, the dual-axis motor 306 is controlled to work, thereby synchronously driving the two rocker arms 307 to deflect to one side. The roller 308 presses the wedge block 305 on this side, so that the two half-shells 303 on this side are closed and tightly attached to the outer side of the filter drum 201 on this side. At the same time, the control panel 106 controls the drain valve pipe 302 on this side to open. At this time, since the filter drum 201 on this side is sealed by the half-shell 303, it is equivalent to the filter drum 201 becoming a cylindrical structure with an uneven inner wall. Therefore, the chemical product liquid sprayed from the side conduit 202 will rebound after impacting the inner wall of the filter drum 201 and carry away the accumulated solid impurities. Then, this part of the chemical product liquid will be discharged from the drain valve pipe 302 on this side. In conjunction with the reciprocating linear motion of the conduit 202, the inner wall of the filter drum 201 on this side can be flushed by relying on the above-mentioned reciprocating impact to avoid blockage.

[0055] It can be seen from the above-mentioned technical solution of using the flushing component 3 to flush the filter cartridge 201 that the flushing solution of the filter cartridge 201 is different from the existing backwashing filtration equipment. It does not need to consume the filtrate that has been filtered. It forms an organic combination with the filtration route of the liquid. The filter component 2 and the flushing component 3 share multiple structures. For example, the two side guide tubes 202 realize reciprocating linear motion under the cooperation of the cam 206 and the limiting wheel 207, thereby improving the filtration efficiency.

[0056] Furthermore, the flushing assembly 3 further includes two protective shells 309 , which are respectively installed above both sides of the shell 101 .

[0057] In this embodiment, reference Figure 9 The collecting assembly 4 includes a connecting seat 401 provided on one side of the second water pump 211, a threaded sleeve 402 is installed in the middle of the top of the connecting seat 401, and a thorn tube 403 connected to the outlet of the second water pump 211 is installed at the center of the top center of the connecting seat 401, located at the center of the threaded sleeve 402. The collecting assembly 4 also includes a threaded tube 406 that can be threadedly connected to the inside of the threaded sleeve 402, and a rubber stopper 407 that can be pierced by the thorn tube 403 is installed inside the threaded tube 406. A telescopic bottle 404 is installed at the top of the threaded tube 406, and a sealing cover 405 is threadedly connected to the outside of the top port of the telescopic bottle 404.

[0058] In this embodiment, again referring to Figure 1-2 The shell assembly 1 also includes a top cover 102, the bottom of the top cover 102 is installed on the top port of the shell 101, and the shell assembly 1 also includes a bottom cover 105, the top of the bottom cover 105 is installed on the bottom port of the shell 101, wherein the bottom of the second water pump 211 is installed on the top side of the top cover 102, the bottom port of the discharge pipe 212 passes through the top cover 102 and extends to the interior of the shell 101, the bottom of the first water pump 209 is installed on the top side of the bottom cover 105, the bottom port of the liquid inlet pipe 210 passes through the bottom cover 105 and extends to the outside of the shell 101, and the bottom of the connecting seat 401 is installed on the other side of the top of the top cover 102.

[0059] In this embodiment, again referring to Figure 1-2 The shell assembly 1 also includes a control panel 106 installed in the middle of one side of the shell 101. The control panel 106 is connected to the first motor 205, the first water pump 209, the second water pump 211, the sewage valve pipe 302 and the dual-axis motor 306 through signals. A handle 107 is installed on the outside of the control panel 106 in the middle of one side of the shell 101.

[0060] Furthermore, this embodiment also provides a method for using a filtration device for chemical product quality testing, comprising the following steps:

[0061] Step 1: Screw the compressed telescopic bottle 404 into the interior of the threaded sleeve 402 through the threaded tube 406 . At this time, the thorn tube 403 will pierce the rubber stopper 407 and extend into the interior of the telescopic bottle 404 .

[0062] Step 2: Hold the handle 107 to extend the bottom end of the liquid inlet pipe 210 into the chemical product liquid, and control the operation of the first water pump 209 and the first motor 205 through the control panel 106, and then draw the chemical product liquid into the interior of the filter cylinder 201 through the liquid inlet pipe 210, the three-way pipe 208, and the conduit 202. Under the action of pressure, the chemical product liquid will be filtered through the filter cylinder 201 to become filtrate. At the same time, the conduits 202 on both sides realize reciprocating linear motion with the cooperation of the cam 206 and the limiting wheel 207, so that the chemical product liquid sprayed from the guide cone cover 203 to the sides will realize reciprocating linear motion inside the filter cylinder 201. The reciprocating impact of the above-mentioned chemical product liquid alleviates the accumulation of solid impurities on the inner wall of the filter cylinder 201.

[0063] Step 3: Control the second water pump 211 through the control panel 106 to pump the filtrate into the telescopic bottle 404 through the drainage pipe 212. As the pumping continues, the telescopic bottle 404 gradually expands under the internal pressure until the desired filtrate is obtained.

[0064] Step 4: During the filtration, the dual-axis motor 306 is controlled by the control panel 106 to work, thereby synchronously driving the rocker 307 to deflect to one side, and the roller 308 presses the wedge block 305 on this side, so that the two half-shells 303 on this side are closed and tightly attached to the outer side of the filter cylinder 201 on this side. At the same time, the control panel 106 controls the drain valve pipe 302 on this side to open. At this time, since the filter cylinder 201 on this side is sealed, the chemical product liquid sprayed from the side conduit 202 will rebound after impacting the inner wall of the filter cylinder 201 and take away the accumulated solid impurities. Then, this part of the chemical product liquid will be discharged from the drain valve pipe 302 on this side. In conjunction with the reciprocating linear motion of the conduit 202, the inner wall of the filter cylinder 201 on this side can be flushed by relying on the above-mentioned reciprocating impact to avoid blockage.

[0065] Step 5: After replacing the new telescopic bottle 404, repeat the operations of steps 1 to 4 to achieve a new round of filtration.

[0066] When the present solution is in operation, the compressed telescopic bottle 404 is first screwed into the interior of the threaded sleeve 402 through the threaded tube 406. At this time, the thorn tube 403 will pierce the rubber stopper 407 and extend into the interior of the telescopic bottle 404. Then, the handle 107 is held to extend the bottom end of the liquid inlet pipe 210 into the chemical product liquid. The first water pump 209 and the first motor 205 are controlled by the control panel 106 to operate, and then the chemical product liquid is pumped into the interior of the filter cylinder 201 through the liquid inlet pipe 210, the three-way pipe 208, and the conduit 202. Under the action of pressure, the chemical product liquid will be filtered through the filter cylinder 201 to become filtrate. At the same time, the conduits 202 on both sides realize reciprocating linear motion under the cooperation of the cam 206 and the limiting wheel 207, so that the chemical product liquid sprayed from the guide cone cover 203 to the sides will realize reciprocating linear motion inside the filter cylinder 201. The reciprocating impact of the above-mentioned chemical product liquid alleviates the accumulation of solid impurities on the inner wall of the filter cylinder 201.

[0067] The second water pump 211 is controlled by the control panel 106 to pump the filtrate into the interior of the telescopic bottle 404 through the discharge pipe 212. As the pumping continues, the telescopic bottle 404 gradually expands under the internal pressure until the desired filtrate is obtained. After replacing the new telescopic bottle 404, the operation is repeated to achieve a new round of filtration.

[0068] During filtration, the control panel 106 controls the dual-axis motor 306 to operate, thereby synchronously driving the rocker 307 to deflect to one side. The roller 308 presses the wedge block 305 on this side, causing the two half-shells 303 on this side to close and tightly adhere to the outer side of the filter drum 201 on this side. At the same time, the control panel 106 controls the drain valve pipe 302 on this side to open. At this time, since the filter drum 201 on this side is sealed, the chemical product liquid sprayed from the side conduit 202 will rebound after impacting the inner wall of the filter drum 201, carrying away the accumulated solid impurities. Then, this part of the chemical product liquid will be discharged from the drain valve pipe 302 on this side. In conjunction with the reciprocating linear motion of the conduit 202, the reciprocating impact can achieve the flushing of the inner wall of the filter drum 201 on this side to avoid clogging. While the filter drum 201 on one side is being flushed, the filter drum 201 on the other side can still maintain the filtering working state. Alternating flushing can achieve stable and uninterrupted filtration operation.

[0069] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for chemical product quality inspection, comprising a housing component (1), a filtering component (2), a flushing component (3) and a collecting component (4), characterized in that: The housing assembly (1) includes a housing (101), the filter assembly (2) is arranged inside the housing (101), and is used to extract the chemical product liquid into the interior of the housing (101), and discharge it from the interior of the housing (101) after filtration, the flushing assembly (3) is arranged inside the housing (101) and on the upper side of the filter assembly (2), and is used to flush the filter portion of the filter assembly (2) to avoid clogging, and the collecting assembly (4) is arranged on the top of the housing (101), and is used to collect the filtrate discharged from the interior of the housing (101); An upper sealing plate (103) and a lower sealing plate (104) are sequentially installed on the inner upper side of the housing (101) from top to bottom, wherein holes are provided on both sides of the inner side of the upper sealing plate (103), and through holes are provided on both sides of the inner side of the lower sealing plate (104) at positions corresponding to the holes; The filter assembly (2) comprises two filter cylinders (201) respectively mounted on the top ports of the holes, and a conduit (202) arranged inside the filter cylinder (201); filter meshes are provided around the side of the filter cylinder (201); a guide cone cover (203) is installed above the top port of the conduit (202); the outside of the conduit (202) corresponds to the inside of the through hole, and the conduit (202) can slide relative to the through hole; the bottom ports of the conduit (202) are connected to a hose (204); the bottom ports of the hose (204) are connected by a tee (208); the remaining pipe opening of the tee (208) is connected to a first water pump (209); the inlet of the first water pump (209) is connected to a liquid inlet pipe (210); The filter assembly (2) further comprises a first motor (205) mounted in the middle of the bottom of the lower sealing plate (104); a shaft is mounted on the driving end of the first motor (205); a cam (206) is mounted on the outside of the shaft; a pair of limiting wheels (207) are rotatably connected to the lower side of the conduit (202) close to the cam (206); and the edges of both sides of the cam (206) are correspondingly fitted between the two pairs of limiting wheels (207); The filter assembly (2) further comprises a second water pump (211) disposed on the top of the housing (101), and the inlet of the second water pump (211) is connected to a drain pipe (212); The flushing assembly (3) comprises a partition (301) installed between an upper sealing plate (103) and a lower sealing plate (104), and a drain valve pipe (302) installed above both sides of the housing (101), wherein the partition (301) is located at the center of the gap between the upper sealing plate (103) and the lower sealing plate (104), and divides the gap into two chambers, and the drain valve pipes (302) on both sides are respectively connected to the two chambers; The flushing assembly (3) further comprises two pairs of half-shells (303) respectively embracing the outside of the filter cylinder (201) on both sides, each pair of the half-shells (303) being able to form a complete cylindrical structure when closed, and the inner wall of the cylindrical structure being able to correspond to the outer side surface of the filter cylinder (201) when closed, guide rods (304) being installed above and below the outer side surfaces of the half-shells (303), one end of the guide rods (304) correspondingly passing through the side walls of the outer shell (101), the outer side of the half-shells (303) being located on both sides of the outer shell (101) being provided with wedges (305), the inner side of the wedges (305) being correspondingly installed above and below one end of the guide rods (304); The flushing assembly (3) further comprises a dual-axis motor (306) mounted above the interior of the housing (101), and the dual-axis motor (306) is located between the filter cylinders (201) on both sides, and both driving ends of the dual-axis motor (306) are located outside the housing (101) and are both equipped with swing rods (307), and one end of the swing rod (307) is externally rotatably connected to a roller (308); The collecting assembly (4) comprises a connecting seat (401) provided on one side of the second water pump (211), a threaded sleeve (402) being installed in the middle of the top of the connecting seat (401), a thorn tube (403) being installed at the center of the top of the connecting seat (401) and located at the center of the threaded sleeve (402) and communicating with the outlet of the second water pump (211), the collecting assembly (4) further comprises a threaded tube (406) capable of being threadedly connected to the inside of the threaded sleeve (402), a rubber stopper (407) capable of being pierced by the thorn tube (403) being installed in the inside of the threaded tube (406), a telescopic bottle (404) being installed at the top end of the threaded tube (406), and a sealing cap (405) being threadedly connected to the outside of the top port of the telescopic bottle (404).

2. A filtering device for chemical product quality testing according to claim 1, characterized in that: The housing assembly (1) further comprises a top cover (102), the bottom of the top cover (102) being mounted on a top port of the housing (101).

3. The filtering device for chemical product quality inspection according to claim 1, characterized in that: The housing assembly (1) further comprises a bottom cover (105), the top of the bottom cover (105) being mounted on the bottom port of the housing (101).

4. The filtering device for chemical product quality inspection according to claim 1, characterized in that: The housing assembly (1) further includes a control panel (106) mounted in the middle of one side of the housing (101), wherein the control panel (106) is connected to the first motor (205), the first water pump (209), the second water pump (211), the drain valve pipe (302) and the dual-axis motor (306) via signals.

5. The filtering device for chemical product quality inspection according to claim 1, characterized in that: A handle (107) is installed in the middle of one side of the housing (101) outside the control panel (106).

6. The filtering device for chemical product quality inspection according to claim 1, characterized in that: The bottom of the second water pump (211) is mounted on one side of the top of the top cover (102), and the bottom port of the liquid discharge pipe (212) passes through the top cover (102) and extends to the interior of the housing (101).

7. The filtering device for chemical product quality inspection according to claim 1, characterized in that: The bottom of the first water pump (209) is mounted on one side of the top of the bottom cover (105), and the bottom port of the liquid inlet pipe (210) passes through the bottom cover (105) and extends to the outside of the housing (101).

8. The filtering device for chemical product quality inspection according to claim 1, characterized in that: The flushing assembly (3) further comprises two protective shells (309), and the protective shells (309) are respectively mounted above the two sides of the shell (101).

9. The filtering device for chemical product quality inspection according to claim 1, characterized in that: The bottom of the connecting seat (401) is mounted on the other side of the top of the top cover (102).

10. A method for using a filtering device for chemical product quality inspection according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Screw the compressed telescopic bottle (404) into the interior of the threaded sleeve (402) through the threaded tube (406). At this time, the thorn tube (403) pierces the rubber stopper (407) and extends into the interior of the telescopic bottle (404); Step 2: Hold the handle (107) and extend the bottom end of the liquid inlet pipe (210) into the chemical product liquid. Control the first water pump (209) and the first motor (205) to work through the control panel (106), and then draw the chemical product liquid into the interior of the filter cylinder (201) through the liquid inlet pipe (210), the three-way pipe (208), and the conduit (202). Under the action of pressure, the chemical product liquid will be filtered through the filter cylinder (201) to become filtrate. At the same time, the conduits (202) on both sides realize reciprocating linear motion under the cooperation of the cam (206) and the limiting wheel (207), so that the chemical product liquid sprayed from the guide cone cover (203) to the sides will realize reciprocating linear motion inside the filter cylinder (201). The reciprocating impact of the chemical product liquid alleviates the accumulation of solid impurities on the inner wall of the filter cylinder (201); Step 3: Control the second water pump (211) to operate through the control panel (106), thereby pumping the filtrate into the interior of the telescopic bottle (404) through the discharge pipe (212). As the pumping continues, the telescopic bottle (404) gradually expands under the internal pressure until the desired filtrate is obtained; Step 4: When filtering is in progress, the control panel (106) controls the dual-axis motor (306) to work, thereby synchronously driving the swing rod (307) to deflect to one side, and the roller (308) presses the wedge block (305) on the side, so that the two half-shells (303) on the side are closed and closely attached to the outer side of the filter cylinder (201) on the side. At the same time, the control panel (106) controls the drain valve pipe (302) on the side to open. At this time, since the filter cylinder (201) on the side is sealed, the chemical product liquid sprayed from the side conduit (202) will rebound after impacting the inner wall of the filter cylinder (201) and take away the accumulated solid impurities. Then, this part of the chemical product liquid will be discharged from the drain valve pipe (302) on the side. In conjunction with the reciprocating linear motion of the conduit (202), the inner wall of the filter cylinder (201) on the side can be flushed by relying on the above-mentioned reciprocating impact to avoid clogging. Step 5: After replacing the new telescopic bottle (404), repeat the operations of steps 1 to 4 to achieve a new round of filtration.

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