Impurity filtering device used in dosing barrel

Abstract

The impurity filtering device used in the dosing barrel comprises the dosing barrel, a feeding opening is formed in the top of the dosing barrel, a guide rail groove is formed in the inner wall of the dosing barrel, a filtering assembly is arranged in the guide rail groove in a sliding mode, the top of the filtering assembly is movably connected with a connecting rod, and the other end of the connecting rod is movably connected with a stabilizing assembly. The stabilizing assembly is arranged at the feeding port, and the connecting rod fixedly arranges the filtering assembly in the guide rail groove through the stabilizing assembly. According to the utility model, liquid medicine enters the water inlet channel from the water inlet at one side of the sliding block seat, so that the liquid medicine can be shunted into the two filtering grooves in the second port, and during the period, due to the installation of the filtering net bag, after the liquid medicine is shunted into the filtering grooves, the liquid medicine can be discharged outwards through the water outlet, and impurities are filtered in the filtering net bag; after winged insects, woven bag scraps and other impurities are filtered, blocking of a dosing pump and blocking of follow-up pipelines and one-way valves cannot be caused, and normal operation of equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to an impurity filtering device for a chemical dosing tank. Background Technique

[0002] Chemical dosing is an important link in the sewage treatment process. During the operation of sewage treatment equipment, a certain amount of coagulant and other chemicals need to be added. Whether the dosage of the chemical is reasonable and whether the chemical can be mixed with the sewage as much as possible directly determines the quality of the treated water.

[0003] At present, during the chemical dosing process, the chemical is generally first mixed evenly by the powder and water in the chemical dosing tank, and then pumped out from the chemical dosing tank by a chemical dosing pump and injected into the corresponding reaction tank through a chemical dosing pipeline; and because impurities such as flying insects and woven bag debris are often mixed in during the production, transportation, storage and disassembly of the chemical powder, after the chemical powder is put into the chemical dosing tank, the above impurities will be put into the tank together with the chemical powder. After being mixed evenly, when the chemical dosing pump pumps, the above impurities will not only cause blockage when the chemical dosing pump pumps, but also be sucked into the subsequent pipeline and check valve due to the large suction of the chemical dosing pump, affecting the normal operation of the equipment. Content of the Utility Model

[0004] The utility model provides an impurity filtering device for a chemical dosing tank to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] An impurity filtering device for a chemical dosing tank, including a chemical dosing tank, a feeding port is arranged at the top of the chemical dosing tank, a guide rail groove is arranged on the inner wall of the chemical dosing tank, and a filtering component is slidably arranged in the guide rail groove. The top of the filtering component is movably connected with a connecting rod, the other end of the connecting rod is movably connected with a stabilizing component, the stabilizing component is arranged at the feeding port, and the connecting rod fixes the filtering component in the guide rail groove through the stabilizing component;

[0007] The filtering component includes a slider seat slidably connected in the guide rail groove, a positioning seat installed in the slider seat, and two filter bags clamped in the positioning seat. One end of the connecting rod is movably connected to the top of the slider seat. A placing groove is arranged on the surface of the slider seat away from the guide rail groove, two water inlet channels communicating with the placing groove are arranged inside the slider seat, and water inlets respectively communicating with the two water inlet channels are arranged on the surface of the slider seat;

[0008] The surface of the positioning seat is penetrated with a first through - opening corresponding to one end of each of the two water inlets and a second through - opening penetrating the surface of the positioning seat and communicating with the first through - opening. The brackets at the open ends of the two filter bags are respectively clamped in the second through - opening. On the surface of the positioning seat located in the placement groove, two filter grooves are provided. The tails of the two filter bags are respectively located in the corresponding filter grooves. And on the side of the positioning seat away from the placement groove, a water outlet communicating with the filter groove is provided.

[0009] Preferably, the stabilizing assembly includes a positioning block movably connected to one end of a connecting rod, a plurality of screw rods movably connected to the positioning block, sleeves respectively threadedly connected to one ends of the plurality of screw rods, and support blocks respectively rotatably connected to one ends of the plurality of sleeves. And a plurality of the support blocks are all located in the feeding port and abut against the chemical adding barrel and the feeding port.

[0010] Preferably, three screw rods are provided. And on the top of the positioning block, three mounting grooves are equidistantly opened along the circumferential direction. One ends of the three screw rods are respectively movably installed in the corresponding mounting grooves.

[0011] Preferably, two fixed shafts are fixedly installed inside the first through - opening. On the two fixed shafts, baffle plates are respectively movably connected. And the two baffle plates are respectively located at the two port ends where the first through - opening communicates with the two water inlets.

[0012] Preferably, the inner wall of the first through - opening is inclined from the two port ends towards the position of the second through - opening. And one ends of the two baffle plates respectively fit on the corresponding inclined surfaces.

[0013] Preferably, two clamping grooves are opened at the top of the positioning seat at the two port ends of the second through - opening. The brackets at the open ends of the two filter bags are respectively clamped in the clamping grooves.

[0014] Preferably, positioning holes are respectively penetrated through the inner top end and the inner bottom end of the placement groove. Threaded grooves corresponding to the positioning holes are respectively opened at the top and the bottom of the positioning seat. The slider seat and the positioning seat are detachably connected by bolts.

[0015] Preferably, a groove is opened on the surface of the positioning seat. A pull - ring connected to the positioning seat is arranged in the groove.

[0016] Preferably, a narrow area is provided between the positioning seat and the slider seat. The narrow area is located between the second through - opening and the filter groove.

[0017] Preferably, a rubber pad is provided on the surface of the support block. Anti - slip textures are provided on the surface of the rubber pad.

[0018] By adopting the above - mentioned technical solution, the beneficial effects obtained by the present utility model are as follows:

[0019] In the present utility model, the chemical liquid enters the water inlet channel from the water inlet on one side of the slider base, so that the chemical liquid can flush open a baffle and flow into the second through port. Subsequently, it is divided into two filter tanks in the second through port. During this period, due to the installation of the filter mesh bag, after the chemical liquid is divided into the filter tanks, the chemical liquid can be discharged outward through the water outlet, while the impurities are filtered in the filter mesh bag, ensuring that after impurities such as flying insects and woven bag debris are filtered, they will not cause blockage of the chemical dosing pump and subsequent pipelines and check valves, guaranteeing the normal operation of the equipment.

[0020] In the present utility model, after the filtering assembly is put into the chemical dosing bucket and slides to the bottom of the guide rail groove, by expanding the three screw rods, after sequentially rotating the sleeves outward, the three support blocks can sequentially abut against the bent part between the feeding port and the chemical dosing bucket, and the stability is ensured by means of the design of the rubber pad. In this way, the positioning block can ensure stability with the cooperation of the three screw rods, sleeves and support blocks. Furthermore, after the positioning block is stable, with the design of the connecting rod, the filtering assembly can always be in a resisting state to ensure stability, which is conducive to filtering the impurities in the chemical dosing bucket after the filtering assembly is installed.

[0021] In the present utility model, after the bolts fixing the positioning seat are removed manually, it is convenient for the operator to remove the positioning seat via the pull ring. And after the filter mesh bag is taken out of the card slot, it is convenient to clean the impurities inside the mesh bag or to replace the filter mesh bag, ensuring the filtering effect when the filtering assembly is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of the present utility model;

[0023] Figure 2 is the first sectional structural schematic diagram of the present utility model;

[0024] Figure 3 is the second sectional structural schematic diagram of the present utility model;

[0025] Figure 4 is the sectional schematic diagram of the filtering assembly of the present utility model;

[0026] Figure 5 is the top sectional schematic diagram of the filtering assembly of the present utility model;

[0027] Figure 6 is the top sectional three-dimensional structural schematic diagram of the filtering assembly of the present utility model;

[0028] Figure 7 is the enlarged structural schematic diagram at A of the present utility model;

[0029] Figure 8 is the structural schematic diagram of the stabilizing assembly of the present utility model;

[0030] Figure 9 It is a schematic enlarged structure diagram at position B of the present utility model;

[0031] Figure 10 It is a schematic exploded structure diagram of the filter assembly of the present utility model;

[0032] Figure 11 It is a schematic structure diagram of the narrow area of the present utility model.

[0033] In the figure: 1, chemical dosing tank; 2, feeding port; 3, guide rail groove;

[0034] 4, filter assembly; 41, slider seat; 42, positioning seat; 43, filter mesh bag;

[0035] 5, connecting rod;

[0036] 6, stabilizing assembly; 61, positioning block; 62, screw; 63, sleeve; 64, support block; 65, installation groove;

[0037] 7, placement groove; 8, water inlet channel; 9, water inlet; 10, first through port; 11, second through port; 12, filter tank; 13, water outlet; 14, fixed shaft; 15, baffle; 16, card slot; 17, positioning hole; 18, thread groove; 19, pull ring; 20, narrow area. Specific embodiments

[0038] In order to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0039] In the present utility model, the term "a plurality of" refers to two or more, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" may be a fixed connection, a detachable connection, or an integral connection; "connection" may be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] It should be noted that when an element is referred to as being "assembled on", "mounted on", "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0041] Many specific details are set forth in the following description in order to provide a thorough understanding of the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification. Embodiment

[0042] As Figures 1-11 As shown, the present utility model provides an impurity filtering device for a chemical dosing tank, including a chemical dosing tank 1. A stirring motor is installed on the top of the chemical dosing tank 1. The output end of the stirring motor is connected to a stirring shaft. One end of the stirring shaft is arranged inside the chemical dosing tank 1 and is connected to a stirring blade. And the above structure is a publicly known technology and will not be described in detail herein. A feeding port 2 is arranged on the top of the chemical dosing tank 1. A guide rail groove 3 is arranged on the inner wall of the chemical dosing tank 1. And a filtering component 4 is slidably arranged in the guide rail groove 3. The top of the filtering component 4 is movably connected to a connecting rod 5. The other end of the connecting rod 5 is movably connected to a stabilizing component 6. The stabilizing component 6 is arranged at the feeding port 2. And the connecting rod 5 fixes the filtering component 4 in the guide rail groove 3 through the stabilizing component 6.

[0043] Furthermore, the guide rail groove 3 can be made of the same material as the chemical dosing tank 1. Then, when those skilled in the art install the guide rail groove 3, the guide rail groove 3 can be fixedly connected to the chemical dosing tank 1 by means of hot melt connection. Among them, a limiting section is arranged at the bottom of the guide rail groove 3, so that when the filtering component 4 slides to the bottommost end in the guide rail groove 3, the filtering component 4 can be limited in movement, so as to realize that the stabilizing component 6 is limited and supported at the feeding port 2, and the connecting rod 5 presses the filtering component 4 to ensure the stability of the filtering component 4.

[0044] Furthermore, at the top of the guide rail groove 3 after installation, during actual use, the hand can touch it when reaching in through the feeding port 2. Thus, the filtering component 4 can be manually lifted and inserted into the guide rail groove 3.

[0045] The filtering component 4 includes a slider base 41 slidably connected in the guide rail groove 3, a positioning base 42 installed in the slider base 41, and two filter bags 43 clamped in the positioning base 42. One end of the connecting rod 5 is movably connected to the top of the slider base 41. A placement groove 7 is formed on one side of the slider base 41 away from the guide rail groove 3. Two water inlet channels 8 communicating with the placement groove 7 are formed inside the slider base 41, and water inlets 9 respectively communicating with the two water inlet channels 8 are formed on the surface of the slider base 41.

[0046] A first through hole 10 corresponding to one end of each of the two water inlet channels 8 is formed through the surface of the positioning base 42, and a second through hole 11 communicating with the first through hole 10 is formed through the surface of the positioning base 42. The brackets at the open ends of the two filter bags 43 are respectively clamped in the second through hole 11. Two filter grooves 12 are formed on the surface of the positioning base 42 located in the placement groove 7. The tails of the two filter bags 43 are respectively located in the corresponding filter grooves 12, and a water outlet 13 communicating with the filter grooves 12 is formed on one side of the positioning base 42 away from the placement groove 7.

[0047] In this embodiment, the stabilizing component 6 includes a positioning block 61 movably connected to one end of the connecting rod 5, a plurality of screw rods 62 movably connected to the positioning block 61, sleeves 63 respectively threadedly connected to one ends of the plurality of screw rods 62, and support blocks 64 respectively rotatably connected to one ends of the plurality of sleeves 63. One end of the sleeve 63 is rotatably connected to the support block 64 through a bearing, so that the sleeve 63 can rotate on the screw rod 62. The plurality of support blocks 64 are all located in the feeding port 2 and abut against the chemical adding barrel 1 and the feeding port 2. There are three screw rods 62, and three installation grooves 65 are equidistantly formed on the top of the positioning block 61 along the circumferential direction. One ends of the three screw rods 62 are respectively movably installed in the corresponding installation grooves 65.

[0048] Combined Figure 7 and Figure 8 As shown, the design of using three screw rods 62, sleeves 63 and support blocks 64 enables the support block 64 to abut against the chemical adding barrel 1 and the feeding port 2, which can ensure the stability of the positioning block 61, and further ensure the stability of the connecting rod 5 and the filtering component 4, so that the filtering component 4 is stably arranged in the guide rail groove 3.

[0049] Furthermore, as Figure 8 shown, a positioning shaft is installed on the surface of the positioning block 61, and one end of the screw rod 62 is rotatably connected to the positioning shaft, so that the screw rod 62 can rotate upward in the installation groove 65. It should be emphasized that when the mold is opened, according to the stability of the support block 64 abutting against the chemical adding barrel 1 and the feeding port 2, the bottom surface of the screw rod 62 is attached to the inner bottom wall of the installation groove 65, and the screw rod 62 cannot rotate downward in the installation groove 65, so that the problem that the connecting rod 5 pushes the positioning block 61 upward and causes the support block 64 to fall off will not occur.

[0050] In this embodiment, two fixed shafts 14 are fixedly installed inside the first through port 10. Two baffle plates 15 are respectively movably connected to the two fixed shafts 14, and the two baffle plates 15 are respectively located at the two end ports where the first through port 10 communicates with the two water inlet channels 8. The inner wall of the first through port 10 is inclined from the two end ports to the position of the second through port 11, and one ends of the two baffle plates 15 are respectively attached to the corresponding inclined surfaces.

[0051] Combined with Figure 5 、 Figure 6 and Figure 9 As shown in, the fixed shaft 14 is arranged at a position far from the second through port 11. Further, due to the design of the inclined surface when the baffle plate 15 rotates under the action of water flow, it can only rotate towards the inside of the first through port 10. In this way, after the water flow enters the water inlet channel 8, one baffle plate 15 can be washed open, and at the same time, the other baffle plate 15 is tightly closed under the action of the water impact force, so as to ensure that the water flow flows into the two filter bags 43 through the second through port 11 for impurity filtration, improving the impurity filtration effect.

[0052] In this embodiment, two clamping grooves 16 located at the two end ports of the second through port 11 are opened at the top of the positioning seat 42, and the brackets at the open ends of the two filter bags 43 are respectively clamped in the clamping grooves 16.

[0053] Combined with Figure 9 and Figure 11 As shown in, the clamping groove 16 is opened downward from the top of the positioning seat 42. The overall cross-section of the clamping groove 16 is a U-shaped groove, and the bracket at the open end of the filter bag 43 is a return-shaped frame, and a limit block for facilitating the extraction of the return-shaped frame is connected to the top end of the return-shaped frame. It should be noted that although the return-shaped frame is not introduced in detail, this structure is a common technology in the prior art, and those skilled in the art can be familiar with and apply it.

[0054] Furthermore, after the bracket on the filter bag 43 is inserted into the clamping groove 16, although its top end is not fixed, after the positioning seat 42 is fixedly installed in the placement groove 7, the top end of the positioning seat 42 and the top end of the return-shaped frame both abut against the inner top wall of the placement groove 7, so as to prevent the filter bag 43 from falling off, and the structure is simple and practical.

[0055] In this embodiment, positioning holes 17 are respectively penetrated and opened at the inner top end and inner bottom end of the placement groove 7, and threaded grooves 18 corresponding to the positioning holes 17 are respectively opened at the top and bottom of the positioning seat 42. The slider seat 41 and the positioning seat 42 are detachably connected by bolts.

[0056] Combined with Figure 4 and Figure 10As shown, the bolt can pass through the positioning hole 17 and be connected in the threaded groove 18, thereby ensuring the fixed connection between the slider seat 41 and the positioning seat 42, and effectively ensuring the filtering effect of the filtering component 4. When it is necessary to clean the impurities in the filter mesh bag 43, the removal of the bolt can remove the positioning seat 42, and then the filter mesh bag 43 can be taken out for impurity cleaning.

[0057] In this embodiment, a groove is provided on the surface of the positioning seat 42, and a pull ring 19 connected to the positioning seat 42 is arranged in the groove. Through the design of the pull ring 19, it is convenient to put the positioning seat 42 into the placement groove 7 or pull the positioning seat 42 out of the placement groove 7, and the structural design is ingenious, reducing the exposed situation.

[0058] In this embodiment, a narrow area 20 is provided between the positioning seat 42 and the slider seat 41, and the narrow area 20 is located between the second through port 11 and the filtering groove 12.

[0059] Combined Figure 5 and Figure 11 As shown, after the positioning seat 42 and the slider seat 41 are connected, the size of the narrow area 20 is smaller than the inner size of the return frame of the filter mesh bag 43. When there is a lot of accumulated impurities at the end of the filter mesh bag 43 and the impurities stick together, the narrow narrow area 20 can effectively reduce the leakage of impurities and improve the filtering effect.

[0060] In this embodiment, a rubber pad is provided on the surface of the support block 64, and anti-slip textures are provided on the surface of the rubber pad. Through the design of the rubber pad, when the support block 64 contacts the inner walls of the chemical addition tank 1 and the feeding port 2, the friction can be increased, ensuring the stability of the stabilizing component 6, and further ensuring the stability of the connecting rod 5 and the filtering component 4.

[0061] The working principle and usage process of the present utility model:

[0062] During installation, the staff can put the filtering component 4 into the chemical addition tank 1. During this period, hold the filtering component 4 and slide the slider seat 41 into the guide rail groove 3, and then use the connecting rod 5 to push the filtering component 4 to slide to the bottom of the guide rail groove 3. Then, unfold the three screw rods 62, and then rotate the sleeves 63 in turn. When the sleeves 63 gradually rotate outwards, the three support blocks 64 can successively abut against the bent part between the feeding port 2 and the chemical addition tank 1, and the stability is ensured by means of the design of the rubber pad. In this way, the positioning block 61 can ensure stability with the cooperation of the three screw rods 62, the sleeves 63 and the support blocks 64. After the positioning block 61 is stable, with the design of the connecting rod 5, the filtering component 4 can always be in a resisting state to ensure stability.

[0063] During filtration, when the motor on the dosing bucket 1 drives the stirring shaft to stir the powder and water clockwise, when the mixed liquid medicine passes through the filtration assembly 4 clockwise, the liquid medicine can enter the water inlet channel 8 from the water inlet 9 on one side of the slider seat 41. Subsequently, the liquid medicine can flush open a baffle 15 and enter the second through port 11. Then, the liquid medicine flows in the second through port 11 and is divided into two filter tanks 12. And during this period, due to the installation of the filter mesh bag 43, after the liquid medicine is divided into the filter tanks 12, the liquid medicine can be discharged outwards through the water outlet 13, while the impurities are filtered in the filter mesh bag 43. Similarly, when the stirring shaft stirs the powder and water counterclockwise, the liquid medicine can enter from the water inlet 9 on the other side of the slider seat 41 and perform the filtration work according to the above steps, so that impurities such as flying insects and woven bag debris will not cause blockage of the dosing pump and subsequent pipelines and check valves after filtration.

[0064] During cleaning, first, the staff rotates the sleeve 63 to make the contact force between the support block 64 and the dosing bucket 1 and the feeding port 2 disappear. Then, it is convenient for the staff to take out the stabilizing component 6 from the feeding port 2. Subsequently, the filtration assembly 4 is driven by the connecting rod 5 to slide upwards in the guide rail groove 3. After sliding to the top, the filtration assembly 4 is taken out of the guide rail groove 3 by hand and taken out from the feeding port 2. Then, the bolts fixing the positioning seat 42 are disassembled with an existing screwdriver. Subsequently, the staff removes the positioning seat 42 through the pull ring 19 and then takes out the filter mesh bag 43 from the card slot 16 to clean the impurities to ensure the cleanliness inside the filter mesh bag 43.

[0065] It should be noted that: the proposed solution for the filtration assembly 4 is only to provide a feasible technical solution. For the design of the size, those skilled in the art can make certain adjustments during manufacturing to make the proportion of the filtration assembly 4 in the dosing bucket 1 larger and the filtration effect better. And in the case of size adjustment, its internal structure and the technology proposed in this solution only vary in size, and the change is that the height becomes higher and the thickness remains unchanged.

[0066] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0067] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An impurity filtering device for a chemical dosing bucket, characterized in that, It includes a chemical dosing bucket (1). A feeding port (2) is provided at the top of the chemical dosing bucket (1). A guide rail groove (3) is provided on the inner wall of the chemical dosing bucket (1). A filtering component (4) is slidably arranged in the guide rail groove (3). The top of the filtering component (4) is movably connected to a connecting rod (5). The other end of the connecting rod (5) is movably connected to a stabilizing component (6). The stabilizing component (6) is arranged at the feeding port (2). And the connecting rod (5) fixes the filtering component (4) in the guide rail groove (3) through the stabilizing component (6). The filtering component (4) includes a slider seat (41) slidably connected in the guide rail groove (3), a positioning seat (42) installed in the slider seat (41), and two filter bags (43) clamped in the positioning seat (42). One end of the connecting rod (5) is movably connected to the top of the slider seat (41). A placement groove (7) is formed on the side of the slider seat (41) away from the guide rail groove (3). Two water inlet channels (8) communicating with the placement groove (7) are formed inside the slider seat (41). And water inlets (9) respectively communicating with the two water inlet channels (8) are formed on the surface of the slider seat (41). First through openings (10) respectively corresponding to one ends of the two water inlet channels (8) are formed through the surface of the positioning seat (42). A second through opening (11) penetrating through the surface of the positioning seat (42) and communicating with the first through opening (10) is formed. The brackets at the open ends of the two filter bags (43) are respectively clamped in the second through opening (11). Two filter grooves (12) are formed on the surface of the positioning seat (42) arranged in the placement groove (7). The tails of the two filter bags (43) are respectively arranged in the corresponding filter grooves (12). And a water outlet (13) communicating with the filter grooves (12) is formed on the side of the positioning seat (42) away from the placement groove (7).

2. The impurity filtering device for a chemical dosing tank according to claim 1, characterized in that, The stabilizing component (6) includes a positioning block (61) movably connected to one end of the connecting rod (5), a plurality of screw rods (62) movably connected to the positioning block (61), sleeves (63) respectively threadedly connected to one ends of the plurality of screw rods (62), and support blocks (64) respectively rotatably connected to one ends of the plurality of sleeves (63). And the plurality of support blocks (64) are all located in the feeding port (2) and abut against the chemical dosing bucket (1) and the feeding port (2).

3. The impurity filtering device for the chemical dosing tank according to claim 2, characterized in that, There are three screw rods (62). Three installation grooves (65) are equidistantly formed along the circumferential direction on the top of the positioning block (61). One ends of the three screw rods (62) are respectively movably installed in the corresponding installation grooves (65).

4. The impurity filtering device for the chemical dosing tank according to claim 1, characterized in that, Two fixed shafts (14) are fixedly installed inside the first through opening (10). Baffle plates (15) are respectively movably connected to the two fixed shafts (14). And the two baffle plates (15) are respectively located at the two port positions where the first through opening (10) communicates with the two water inlet channels (8).

5. The impurity filtering device for the chemical dosing tank according to claim 4, characterized in that, The inner wall of the first through opening (10) is inclined from the two port positions towards the second through opening (11). And one ends of the two baffle plates (15) respectively fit on the corresponding inclined surfaces.

6. The impurity filtering device for the chemical dosing tank according to claim 1, wherein, Two clamping grooves (16) are formed at the top of the positioning seat (42) at the two ports of the second through port (11), and the brackets at the open ends of the two filter bags (43) are respectively clamped in the clamping grooves (16).

7. A kind of impurity filtering device for the medicine adding barrel according to claim 1, characterized in that, Positioning holes (17) are respectively formed through the inner top end and the inner bottom end of the placement groove (7), threaded grooves (18) corresponding to the positioning holes (17) are respectively formed at the top and the bottom of the positioning seat (42), and the slider seat (41) and the positioning seat (42) are detachably connected by bolts.

8. A kind of impurity filtering device for the chemical dosing tank according to claim 1, characterized in that, A groove is formed on the surface of the positioning seat (42), and a pull ring (19) connected to the positioning seat (42) is arranged in the groove.

9. The impurity filtering device for a chemical dosing tank according to claim 1, wherein, A narrow area (20) is arranged between the positioning seat (42) and the slider seat (41), and the narrow area (20) is located between the second through port (11) and the filtering groove (12).

10. A kind of impurity filtering device for the medicine adding barrel according to claim 2, characterized in that, A rubber pad is arranged on the surface of the support block (64), and anti-slip textures are arranged on the surface of the rubber pad.

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