Liquid water-soluble fertilizer filtering equipment

Abstract

The utility model provides liquid water-soluble fertilizer filtering equipment which comprises two filters, a first communicating pipe, a second communicating pipe, a liquid inlet pump and a liquid outlet pump, the two ends of the first communicating pipe are communicated with liquid inlets of the two filters respectively, the middle of the first communicating pipe is communicated with a mixed liquid inlet pipe, and the middle of the second communicating pipe is communicated with a mixed liquid outlet pipe. The liquid inlet pump is arranged on the mixed liquid inlet pipe, two ends of the second communicating pipe are respectively communicated with liquid outlets of the two filters, the middle part of the second communicating pipe is communicated with a mixed liquid outlet pipe, and the liquid outlet pump is arranged on the mixed liquid outlet pipe. The liquid water-soluble fertilizer filtering equipment has the advantages of being scientific in design, suitable for large-scale production, high in filtering efficiency and capable of automatically removing blockage.

Description

Technical Field

[0001] The utility model relates to fertilizer production equipment, in particular to liquid water-soluble fertilizer filtering equipment. Background Art

[0002] Liquid water-soluble fertilizer is a fully water-soluble, multi-component compound fertilizer. It can precisely adjust the ratio of various nutrients based on the growth needs of different crops and soil conditions, making it easier for plants to absorb. During production, liquid water-soluble fertilizer is first mixed according to the formula. The mixture and solid raw materials are then placed into a reactor. After the reaction is complete, the mixture is discharged into a finished product tank for storage.

[0003] Due to incomplete dissolution or solubility changes, fixed substances will precipitate in the mixed liquid and need to be filtered before entering the reactor. The traditional filtration method is to use a single filter for filtration, but in industrial large-scale production, the filtration volume is very large. During the filtration process, the blockage of a single filter will become more and more serious, thereby increasing the filtration resistance, reducing the filtration rate, and affecting production efficiency.

[0004] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the Invention

[0005] The purpose of the utility model is to address the deficiencies of the existing technology and thus provide a liquid water-soluble fertilizer filtering device which has a scientific design, is suitable for large-scale production, has high filtering efficiency and can automatically clear blockages.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is: a liquid water-soluble fertilizer filtering equipment, comprising two filters, a first connecting pipe, a second connecting pipe, an inlet pump and a liquid outlet pump, the two ends of the first connecting pipe are respectively connected to the liquid inlets of the two filters, the middle part of the first connecting pipe is connected to the mixed liquid inlet pipe, the inlet pump is arranged on the mixed liquid inlet pipe, the two ends of the second connecting pipe are respectively connected to the liquid outlets of the two filters, the middle part of the second connecting pipe is connected to the mixed liquid outlet pipe, and the outlet pump is arranged on the mixed liquid outlet pipe.

[0007] Based on the above, the middle of the second communicating pipe is further connected to a backwash liquid inlet pipe, and the middle of the first communicating pipe is further connected to a backwash liquid outlet pipe. Both the backwash liquid inlet pipe and the backwash liquid outlet pipe are provided with solenoid valves.

[0008] Based on the above, the top end of the backwash liquid outlet pipe is connected to the middle part of the first connecting pipe through a conical expansion port.

[0009] Based on the above, the filter includes a shell and a cylindrical filter screen arranged in the shell, the cylindrical filter screen divides the interior of the shell into a filtrate chamber and a mother liquid chamber, the liquid outlet of the filter is opened on the cavity wall of the filtrate chamber, and the liquid inlet of the filter is opened on the cavity wall of the mother liquid chamber.

[0010] Based on the above, a filtrate pressure sensor is provided in the filtrate chamber, and a mother liquid pressure sensor is provided in the mother liquid chamber.

[0011] The present invention has substantial features and progress over the prior art. Specifically, the present invention has the following advantages:

[0012] (1) By setting the first connecting pipe and the second connecting pipe, the two filters are connected in parallel. By sharing the filtrate, the filtration volume of each filter is halved, thereby reducing clogging. The liquid inlet pump sends liquid into the two filters, and the liquid outlet pump draws liquid from the two filters. The "one push and one pull" method speeds up the filtration speed.

[0013] (2) The backwash inlet pipe and the backwash outlet pipe are provided to reversely flush the filter, flush out clogged impurities, and achieve automatic dredging; the conical expansion port is provided to facilitate the collection of impurities into the backwash outlet pipe, and impurities are not easily deposited in the first connecting pipe.

[0014] (3) The filtrate pressure sensor can monitor the filtrate pressure, and the mother liquor pressure sensor can monitor the mother liquor pressure. The pressure difference between the two can be used to conveniently assess the clogging degree of the filter and facilitate backwashing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the liquid water-soluble fertilizer filtering equipment in Example 1.

[0016] Figure 2 Schematic diagram of the internal structure of the filter in Example 2.

[0017] In the figure: 1. filter; 2. first connecting pipe; 3. second connecting pipe; 4. inlet pump; 5. outlet pump; 6. mixed liquid inlet pipe; 7. mixed liquid outlet pipe; 8. backwash inlet pipe; 9. backwash outlet pipe; 10. solenoid valve; 11. housing; 12. cylindrical filter screen; 13. filtrate chamber; 14. mother liquid chamber; 15. filtrate pressure sensor; 16. mother liquid pressure sensor; 91. conical flare. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model is further described in detail below through specific implementation methods. Example 1

[0019] like Figure 1 As shown, a liquid water-soluble fertilizer filtering device includes two filters 1, a first connecting pipe 2, a second connecting pipe 3, an inlet pump 4 and an outlet pump 5. The two ends of the first connecting pipe 2 are respectively connected to the liquid inlets of the two filters 1, the middle part of the first connecting pipe 2 is connected to the mixed liquid inlet pipe 6, and the inlet pump 4 is arranged on the mixed liquid inlet pipe 6. The two ends of the second connecting pipe 3 are respectively connected to the liquid outlets of the two filters 1, the middle part of the second connecting pipe 3 is connected to the mixed liquid outlet pipe 7, and the outlet pump 5 is arranged on the mixed liquid outlet pipe 7.

[0020] Working principle:

[0021] The arrangement of the first communicating pipe 2 and the second communicating pipe 3 connects the two filters 1 in parallel, so that the mixed liquid can be apportioned, and the filtering amount of each filter 1 is halved, thereby reducing blockage; the mixed liquid inlet pipe 6 is externally connected to the mixed liquid storage tank, and the mixed liquid outlet pipe 7 is externally connected to the reactor, the liquid inlet pump 4 sends liquid into the two filters 1, and the liquid outlet pump 5 draws liquid from the two filters 1, and the "one push and one pull" speeds up the filtration speed, thereby greatly improving the filtration efficiency.

[0022] The middle of the second connecting pipe 3 is also connected to a backwash liquid inlet pipe 8, and the middle of the first connecting pipe 2 is also connected to a backwash liquid outlet pipe 9. Both the backwash liquid inlet pipe 8 and the backwash liquid outlet pipe 9 are provided with a solenoid valve 10; the backwash liquid inlet pipe 8 is externally connected to tap water. When backwashing is required, the two solenoid valves 10 are opened, and the backwash liquid inlet pipe 8 introduces tap water into the filter 1 to flush out the impurities blocked in the filter 1 and finally discharge them from the backwash liquid outlet pipe 9.

[0023] To prevent impurities from being deposited in the backwash outlet pipe 9 , the top of the backwash outlet pipe 9 is connected to the middle of the first connecting pipe 2 through a conical expansion opening 91 , so that impurities can be easily collected in the backwash outlet pipe 9 . Example 2

[0024] like Figure 2As shown, the difference between this embodiment and Example 1 is that the filter includes a housing 11 and a cylindrical filter screen 12 disposed within the housing 11. The cylindrical filter screen 12 divides the interior of the housing 11 into a filtrate chamber 13 and a mother liquid chamber 14. The liquid outlet of the filter 1 is provided on the wall of the filtrate chamber 13, and the liquid inlet of the filter 1 is provided on the wall of the mother liquid chamber 14. A filtrate pressure sensor 15 is provided within the filtrate chamber 13, and a mother liquid pressure sensor 16 is provided within the mother liquid chamber 14. During use, the filtrate pressure sensor 15 can monitor the filtrate pressure, and the mother liquid pressure sensor 16 can monitor the mother liquid pressure. The pressure difference between the two facilitates the assessment of the degree of blockage of the filter 1 and facilitates backwashing operations.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A liquid water-soluble fertilizer filtering device, characterized by: It includes two filters, a first connecting pipe, a second connecting pipe, an inlet pump and an outlet pump, the two ends of the first connecting pipe are respectively connected to the liquid inlets of the two filters, the middle part of the first connecting pipe is connected to the mixed liquid inlet pipe, the inlet pump is arranged on the mixed liquid inlet pipe, the two ends of the second connecting pipe are respectively connected to the liquid outlets of the two filters, the middle part of the second connecting pipe is connected to the mixed liquid outlet pipe, and the outlet pump is arranged on the mixed liquid outlet pipe.

2. The liquid water-soluble fertilizer filtering device according to claim 1, characterized in that: The middle of the second communicating pipe is further connected to a backwashing liquid inlet pipe, and the middle of the first communicating pipe is further connected to a backwashing liquid outlet pipe. Both the backwashing liquid inlet pipe and the backwashing liquid outlet pipe are provided with solenoid valves.

3. The liquid water-soluble fertilizer filtering device according to claim 2, characterized in that: The top end of the backwash liquid outlet pipe is connected to the middle portion of the first communicating pipe through a conical expansion port.

4. The liquid water-soluble fertilizer filtering device according to any one of claims 1 to 3, characterized in that: The filter includes a shell and a cylindrical filter screen arranged in the shell. The cylindrical filter screen divides the interior of the shell into a filtrate chamber and a mother liquid chamber. The liquid outlet of the filter is opened on the cavity wall of the filtrate chamber, and the liquid inlet of the filter is opened on the cavity wall of the mother liquid chamber.

5. The liquid water-soluble fertilizer filtering device according to claim 4, characterized in that: A filtrate pressure sensor is provided in the filtrate cavity, and a mother liquid pressure sensor is provided in the mother liquid cavity.

Images