Water-soluble fertilizer filtering device

Abstract

The utility model discloses a water-soluble fertilizer filtering device which comprises a dissolving tank used for dissolving a water-soluble fertilizer to form a mixed solution; the liquid conveying mechanism is mounted on the dissolving tank and is used for conveying the mixed liquid; the filtering assembly is communicated with the liquid feeding mechanism and used for filtering insoluble substances in the mixed liquid, and a plurality of filtering units working independently are installed on the filtering assembly. According to the utility model, the plurality of filtering units which work independently are mounted on the filtering assembly, so that when the filtering effect of any filtering unit is reduced, the filtering unit can be independently maintained without stopping, the filtering effect is improved, and the problem that the filtering unit can be maintained only after stopping is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water-soluble fertilizers, in particular to a water-soluble fertilizer filtering device. Background Art

[0002] Water-soluble fertilizer is dissolved in clean water to form a mixed liquid, and then fertilized by drip irrigation, sprinkler irrigation, soilless cultivation, etc. In the process of sprinkler irrigation, since the nozzle hole is small, it is easy to be blocked. A filtering device can be used to filter the mixed liquid to avoid clogging. The existing filtering device includes a dissolving tank, and a filter screen is installed at the liquid outlet of the dissolving tank. After the dissolving tank is sealed, the air pressure in the dissolving tank is increased by an air pump, and filtered through the filter screen.

[0003] The existing filtering device has the following problem: when the filtering effect is reduced, it is necessary to shut down the device and reduce the pressure in the dissolving tank before maintenance can be carried out.

[0004] Based on the above situation, a water-soluble fertilizer filtering device is urgently needed to solve the problem that maintenance can only be performed after the device is shut down. Utility Model Content

[0005] The purpose of the utility model is to: for the existing filtering device, including a dissolving tank, the liquid outlet of the dissolving tank is installed with a filter screen, after the dissolving tank is sealed, the air pressure in the dissolving tank is increased by an air pump, and filtered through the filter screen. When the filtering effect is reduced, it is necessary to shut down and reduce the pressure in the dissolving tank before maintenance can be carried out, thereby solving the problem of having to shut down for maintenance.

[0006] The technical solution of the utility model is as follows:

[0007] A water-soluble fertilizer filtering device, comprising:

[0008] A dissolving tank, used to dissolve water-soluble fertilizer to form a mixed liquid;

[0009] A liquid delivery mechanism, installed on the dissolving tank and used for delivering the mixed liquid;

[0010] The filter assembly is connected with the liquid delivery mechanism and is used to filter the insoluble substances in the mixed liquid. The filter assembly is equipped with a plurality of independently working filter units.

[0011] The existing filtering device includes a dissolving tank, and a filter screen is installed at the liquid outlet of the dissolving tank. After the dissolving tank is sealed, the air pressure in the dissolving tank is increased by an air pump, and filtered through the filter screen. When the filtering effect is reduced, it is necessary to stop the machine for maintenance. In this solution, since a number of independently working filtering units are installed on the filtering assembly, when the filtering effect of any of the filtering units is reduced, the filtering unit can be maintained separately without stopping the machine, thereby improving the filtering effect and solving the problem of needing to stop the machine for maintenance.

[0012] Furthermore, in order to facilitate the maintenance of the filter unit, one feasible solution is that the filter unit includes a branch pipe and a valve is installed on the branch pipe. When this solution is adopted, when the filtering effect of any filter unit is reduced, the corresponding valve is closed to cut off the mixed liquid, and then the filter unit is maintained. The remaining filter units can still continue to work, thereby ensuring the filtering efficiency.

[0013] Furthermore, in order to facilitate the maintenance of the filter unit, one feasible solution is: the branch pipe is threadedly connected with a filter and a sealing ring is provided between the filter and the branch pipe. When this solution is adopted, the valve corresponding to the filter unit that needs maintenance is closed, the filter is unscrewed and a qualified filter is installed, thereby reducing the replacement time of the filter and further improving the filtration efficiency.

[0014] Furthermore, the present scheme does not solely limit the specific structure of the liquid delivery mechanism. One feasible scheme is: the liquid delivery mechanism includes a liquid delivery chamber, and the liquid delivery chamber is equipped with a liquid inlet ball and a liquid outlet ball, and the liquid inlet ball and the liquid outlet ball are both equipped with corresponding sealing rings. When this scheme is adopted, when the volume of the liquid delivery chamber increases, the liquid outlet ball cooperates with the corresponding sealing ring under the action of gravity to achieve sealing, thereby preventing the mixed liquid from flowing back. The liquid inlet ball is separated from the corresponding sealing ring under the action of negative pressure, allowing the mixed liquid to enter the liquid delivery chamber; when the volume of the liquid delivery chamber increases or decreases, the liquid inlet ball cooperates with the corresponding sealing ring under the action of gravity to achieve sealing, thereby preventing the mixed liquid from flowing back. The liquid outlet ball is separated from the corresponding sealing ring under the action of pressure, allowing the mixed liquid to be discharged from the liquid delivery chamber. The use of negative pressure delivery can omit the step of depressurizing the dissolution tank in the traditional scheme.

[0015] Furthermore, the present solution does not limit the volume change mode of the liquid delivery chamber. One feasible solution is: a piston is installed in the liquid delivery chamber, and the piston is connected to a driving part. When this solution is adopted, the driving part drives the piston to move back and forth, thereby increasing or decreasing the volume of the liquid delivery chamber. The structure is simple and easy to implement.

[0016] Furthermore, the present solution does not limit the specific structure of the driving part, and one feasible solution is that the driving part includes an intermediate rod connected to the piston, and the intermediate rod is connected to a turntable driven by a motor box. When this solution is adopted, the motor box sequentially drives the turntable, the intermediate rod and the piston to move, so that the circular motion of the turntable can be converted into the linear reciprocating motion of the piston.

[0017] Compared with the existing technology, the beneficial effects of the utility model are:

[0018] 1. Since the filter assembly is equipped with a plurality of independently working filter units, when the filtering effect of any filter unit is reduced, the filter unit can be maintained separately without stopping the machine, thereby improving the filtering effect and solving the problem of having to stop the machine for maintenance;

[0019] Second, since the branch pipe is threadedly connected with a filter screen and a sealing ring is provided between the filter screen and the branch pipe, the valve corresponding to the filter unit that needs maintenance is closed, the filter screen is unscrewed and a qualified filter screen is installed, which reduces the replacement time of the filter screen and further improves the filtering efficiency;

[0020] 3. Since the liquid delivery mechanism includes a liquid delivery chamber, the liquid delivery chamber is equipped with a liquid inlet ball and a liquid outlet ball, and the liquid inlet ball and the liquid outlet ball are both equipped with corresponding sealing rings. When the volume of the liquid delivery chamber increases, the liquid outlet ball cooperates with the corresponding sealing ring under the action of gravity to achieve sealing, thereby preventing the mixed liquid from flowing back. The liquid inlet ball is separated from the corresponding sealing ring under the action of negative pressure, allowing the mixed liquid to enter the liquid delivery chamber; when the volume of the liquid delivery chamber increases or decreases, the liquid inlet ball cooperates with the corresponding sealing ring under the action of gravity to achieve sealing, thereby preventing the mixed liquid from flowing back. The liquid outlet ball is separated from the corresponding sealing ring under the action of pressure, allowing the mixed liquid to be discharged from the liquid delivery chamber. The use of negative pressure delivery can omit the step of decompressing the dissolution tank in the traditional solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall first viewing angle structure of an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall structure of the embodiment of the utility model from a second viewing angle;

[0023] Figure 3 for Figure 1 A in the enlarged view;

[0024] Figure 4 This is a cross-sectional view of a liquid delivery mechanism according to an embodiment of the utility model;

[0025] Figure 5 for Figure 4 Enlarged view of point B in .

[0026] Reference numerals:

[0027] 1. Dissolving tank; 2. Liquid delivery mechanism; 3. Filter assembly;

[0028] 21. Liquid delivery chamber; 22. Liquid inlet ball; 23. Liquid outlet ball; 24. Sealing ring; 25. Piston; 26. Driving unit;

[0029] 261, middle rod; 262, turntable; 263, motor box;

[0030] 31. Filter unit;

[0031] 311. Branch pipe; 312. Valve; 313. Filter. DETAILED DESCRIPTION

[0032] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0033] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0034] Example:

[0035] Please refer to Figure 1 and Figure 2 , a water-soluble fertilizer filtering device, comprising:

[0036] A dissolving tank 1, used for dissolving water-soluble fertilizer to form a mixed liquid;

[0037] A liquid delivery mechanism 2, installed on the dissolving tank 1 and used for delivering the mixed liquid;

[0038] The filter assembly 3 is connected to the liquid delivery mechanism 2 and is used to filter the insoluble substances in the mixed liquid. A plurality of independently working filter units 31 are installed on the filter assembly 3.

[0039] The existing filtering device includes a dissolving tank, and a filter screen is installed at the liquid outlet of the dissolving tank. After the dissolving tank is sealed, the air pressure in the dissolving tank is increased by an air pump, and filtered through the filter screen. When the filtering effect is reduced, it is necessary to stop the machine for maintenance. In this solution, since a number of independently working filter units 31 are installed on the filter assembly 3, when the filtering effect of any filter unit 31 is reduced, the filter unit 31 can be maintained separately without stopping the machine, thereby improving the filtering effect and solving the problem of needing to stop the machine for maintenance.

[0040] Reference Figure 3In order to facilitate the maintenance of the filter unit 31, one feasible solution is that the filter unit 31 includes a branch pipe 311 and a valve 312 is installed on the branch pipe 311. When this solution is adopted, when the filtering effect of any filter unit 31 is reduced, the corresponding valve 312 is closed to cut off the mixed liquid, and then the filter unit 31 is maintained, and the remaining filter units 31 can still continue to work, thereby ensuring the filtering efficiency.

[0041] In order to facilitate the maintenance of the filter unit 31, one feasible solution is: the branch pipe 311 is threadedly connected with the filter screen 313 and a sealing ring is provided between the filter screen 313 and the branch pipe 311. When this solution is adopted, the valve 312 corresponding to the filter unit 31 that needs maintenance is closed, the filter screen 313 is unscrewed and a qualified filter screen 313 is installed, which reduces the replacement time of the filter screen 313 and further improves the filtering efficiency.

[0042] Reference Figure 4 and Figure 5 , this scheme does not limit the specific structure of the liquid delivery mechanism 2. One feasible scheme is: the liquid delivery mechanism 2 includes a liquid delivery chamber 21, and the liquid delivery chamber 21 is equipped with a liquid inlet ball 22 and a liquid outlet ball 23. The liquid inlet ball 22 and the liquid outlet ball 23 are both equipped with corresponding sealing rings 24. When this scheme is adopted, when the volume of the liquid delivery chamber 21 increases, the liquid outlet ball 23 cooperates with the corresponding sealing ring 24 under the action of gravity to achieve sealing, thereby preventing the mixed liquid from flowing back. The liquid inlet ball 22 is separated from the corresponding sealing ring 24 under the action of negative pressure, so that the mixed liquid enters the liquid delivery chamber 21; when the volume of the liquid delivery chamber 21 increases or decreases, the liquid inlet ball 22 cooperates with the corresponding sealing ring 24 under the action of gravity to achieve sealing, thereby preventing the mixed liquid from flowing back. The liquid outlet ball 23 is separated from the corresponding sealing ring 24 under the action of pressure, so that the mixed liquid is discharged from the liquid delivery chamber 21. The negative pressure delivery method can save the step of decompressing the dissolution tank in the traditional scheme.

[0043] Reference Figure 1 and Figure 4 This solution does not limit the volume change mode of the liquid delivery chamber 21. One feasible solution is: a piston 25 is installed in the liquid delivery chamber 21, and the piston is connected to a driving part 26. When this solution is adopted, the driving part 26 drives the piston 25 to move back and forth, thereby increasing or decreasing the volume of the liquid delivery chamber 21. The structure is simple and easy to implement.

[0044] Reference Figure 2 This solution does not limit the specific structure of the driving part 26. One feasible solution is that the driving part 26 includes an intermediate rod 261 connected to the piston 25, and the intermediate rod 261 is connected to a rotating disk 262 driven by a motor box 263. When this solution is adopted, the motor box 263 drives the rotating disk 262, the intermediate rod 261 and the piston 25 to move in sequence, so that the circular motion of the rotating disk 262 can be converted into the linear reciprocating motion of the piston 25.

[0045] The working principle of this embodiment:

[0046] Pour the water-soluble fertilizer and clean water into the dissolving tank 1 and fully dissolve them. The motor box 263 drives the rotating disk 262, the intermediate rod 261 and the piston 25 to move in sequence, thereby increasing or decreasing the volume of the liquid delivery chamber 21. When the volume of the liquid delivery chamber 21 increases, the liquid outlet ball 23 cooperates with the corresponding sealing ring 24 under the action of gravity to achieve sealing, thereby preventing the mixed liquid from flowing back. The liquid inlet ball 22 is separated from the corresponding sealing ring 24 under the action of negative pressure, allowing the mixed liquid to enter the liquid delivery chamber 21. When the volume of the liquid delivery chamber 21 increases, the liquid outlet ball 23 cooperates with the corresponding sealing ring 24 under the action of negative pressure to achieve sealing, thereby preventing the mixed liquid from flowing back. When the accumulation decreases, the liquid inlet ball 22 cooperates with the corresponding sealing ring 24 under the action of gravity to achieve sealing, thereby preventing the mixed liquid from flowing back. The liquid outlet ball 23 is separated from the corresponding sealing ring 24 under the action of pressure, so that the mixed liquid is discharged from the liquid delivery chamber 21 and transported to the filter assembly 3. When the filtering effect of any filter unit 31 is reduced, its corresponding valve 312 is closed to cut off the mixed liquid, the corresponding filter screen 313 is unscrewed and a qualified filter screen 313 is installed, and the remaining filter units 31 can still continue to work.

[0047] In order to solve the problem that maintenance can only be carried out after shutdown, in this solution, since several independently working filter units 31 are installed on the filter assembly 3, when the filtering effect of any filter unit 31 is reduced, the filter unit 31 can be maintained individually without stopping the machine, thereby improving the filtering effect and solving the problem that maintenance can only be carried out after shutdown.

[0048] In order to further improve the filtering efficiency, in the present invention, since the branch pipe 311 is threadedly connected with the filter 313 and a sealing ring is provided between the filter 313 and the branch pipe 311, the valve 312 corresponding to the filter unit 31 that needs maintenance is closed, the filter 313 is unscrewed and a qualified filter 313 is installed, thereby reducing the replacement time of the filter 313 and further improving the filtering efficiency.

[0049] In order to eliminate the step of depressurizing the dissolution tank in the traditional scheme, in the present scheme, since the liquid delivery mechanism 2 includes a liquid delivery chamber 21, the liquid delivery chamber 21 is equipped with a liquid inlet ball 22 and a liquid outlet ball 23, and the liquid inlet ball 22 and the liquid outlet ball 23 are both equipped with corresponding sealing rings 24. When the volume of the liquid delivery chamber 21 increases, the liquid outlet ball 23 cooperates with the corresponding sealing ring 24 under the action of gravity to achieve sealing, thereby preventing the mixed liquid from flowing back. The liquid inlet ball 22 is separated from the corresponding sealing ring 24 under the action of negative pressure, allowing the mixed liquid to enter the liquid delivery chamber 21; when the volume of the liquid delivery chamber 21 increases or decreases, the liquid inlet ball 22 cooperates with the corresponding sealing ring 24 under the action of gravity to achieve sealing, thereby preventing the mixed liquid from flowing back. The liquid outlet ball 23 is separated from the corresponding sealing ring 24 under the action of pressure, allowing the mixed liquid to be discharged from the liquid delivery chamber 21. The negative pressure delivery method is adopted, which can eliminate the step of depressurizing the dissolution tank in the traditional scheme.

[0050] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water-soluble fertilizer filtering device, characterized in that: include: A dissolving tank (1), used for dissolving water-soluble fertilizer to form a mixed liquid; A liquid delivery mechanism (2), installed on the dissolution tank (1) and used for delivering the mixed liquid; The filter assembly (3) is connected to the liquid delivery mechanism (2) and is used to filter insoluble substances in the mixed liquid. A plurality of independently working filter units (31) are installed on the filter assembly (3).

2. A water-soluble fertilizer filtering device according to claim 1, characterized in that: The filter unit (31) comprises a branch pipe (311) and a valve (312) is installed on the branch pipe (311).

3. A water-soluble fertilizer filtering device according to claim 2, characterized in that: The branch pipe (311) is threadedly connected to a filter screen (313), and a sealing ring is provided between the filter screen (313) and the branch pipe (311).

4. A water-soluble fertilizer filtering device according to claim 1, characterized in that: The liquid delivery mechanism (2) comprises a liquid delivery cavity (21), the liquid delivery cavity (21) being equipped with a liquid inlet ball (22) and a liquid outlet ball (23), and the liquid inlet ball (22) and the liquid outlet ball (23) being equipped with corresponding sealing rings (24).

5. A water-soluble fertilizer filtering device according to claim 4, characterized in that: A piston (25) is installed in the liquid delivery chamber (21), and the piston is connected to a driving part (26).

6. A water-soluble fertilizer filtering device according to claim 5, characterized in that: The driving part (26) comprises an intermediate rod (261) connected to the piston (25), and the intermediate rod (261) is connected to a rotating disk (262) driven by a motor box (263).

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