Multistage vibrating screen for removing impurities from calcium carbonate powder

Abstract

The utility model relates to the technical field of calcium carbonate powder impurity removal, in particular to a multistage vibrating screen for calcium carbonate powder impurity removal, which comprises a screening box and a feed hopper communicated with the upper end of the screening box. At least three filter screen plates are sequentially arranged in the screening box from top to bottom, and electric vibrators fixed in the screening box are arranged on the left sides of the upper ends of the filter screen plates; an electric cylinder is fixed to the right end of the feeding hopper, the power end of the electric cylinder is connected with a water conveying pipe, synchronous pipes communicated with the water conveying pipe are arranged above the filter screen plates, the ends of the synchronous pipes are communicated with flow dividing pipes, and the lower ends of the flow dividing pipes are connected with cleaning brushes; impurities on the filter screen plates do not need to be manually detached and cleaned, all the filter screen plates are cleaned at the same time, the cleaning time is effectively saved, the follow-up calcium carbonate powder screening and impurity removing efficiency is improved, impurities blocked on the filter screen plates are flushed through the flushing nozzles, and the cleanliness of the filter screen plates is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbonate powder impurity removal, in particular to a multi-stage vibrating screen for calcium carbonate powder impurity removal. Background Art

[0002] Calcium carbonate is an inorganic compound, commonly known as gray stone, limestone, stone powder, marble, etc. Calcium carbonate is neutral, insoluble in water, soluble in hydrochloric acid. Calcium carbonate is also an important building material and is widely used in industry. Since calcium carbonate powder often contains particulate impurities, in order to ensure the quality of calcium carbonate powder, it is usually necessary to screen out the particulate impurities through a vibrating screen, that is, to drive multiple filter plates to screen the calcium carbonate powder in multiple stages in a vibrating manner to obtain calcium carbonate powder of qualified quality.

[0003] A multi-stage high-efficiency vibrating screen for removing impurities from calcium carbonate powder disclosed in Chinese patent authorization announcement No. CN 219560399 U includes a vibrating screen body, a sealing door is arranged on the front surface of the vibrating screen body, an observation window is arranged on the inner wall of the sealing door, a feeding port is arranged on the top of the vibrating screen body, calcium carbonate powder is arranged in the feeding port, and a vibrator is arranged on one side of the vibrating screen body; the utility model provides a slide groove, a fixing bolt, a support block and a screw hole, and when the second filter screen is used, the second filter screen can be pulled out from the inside of the vibrating screen body by using the cooperation of the slide groove and the support block, so as to clean the impurities remaining on the second filter screen, and then when the second filter screen is installed, the second filter screen can be fixed by using the cooperation of the fixing bolt and the screw hole, so as to avoid the second filter screen from moving when in use, thereby affecting the use effect of the second filter screen, and in this way, the use efficiency of the vibrating screen body is improved, thereby improving the work efficiency.

[0004] By reviewing the above comparative documents, it can be seen that the prior art still has the following shortcomings: although the filter can be removed by disassembly, the impurities left on the filter must be cleaned by disassembly each time, and a piece of the filter needs to be disassembled separately for cleaning each time, which not only makes the cleaning of the filter not convenient and fast enough, but also requires manual installation of the cleaned filter again, which wastes time and makes it difficult to quickly remove impurities from the subsequent calcium carbonate powder, resulting in a slow impurity removal efficiency for the calcium carbonate powder. Utility Model Content

[0005] The utility model provides a multi-stage vibrating screen for removing impurities from calcium carbonate powder, which is conducive to quickly and conveniently cleaning out impurities on the filter screen, saving time and effectively improving the impurity removal efficiency of the calcium carbonate powder.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A multi-stage vibrating screen for removing impurities from calcium carbonate powder, comprising a screening box and a feed hopper, wherein the feed hopper is connected to the upper end of the screening box;

[0008] At least three filter plates are arranged in sequence from top to bottom in the screening box, and an electric vibrator fixed in the screening box is arranged on the left side of the upper end of each filter plate;

[0009] An electric cylinder is fixed at the right end of the feed hopper, a water pipe is connected to the power end of the electric cylinder, a synchronous pipe connected to the water pipe is arranged above the filter plate, a shunt pipe is connected to the end of the synchronous pipe, a cleaning brush is connected to the lower end of the shunt pipe, and a plurality of flushing nozzles with nozzles facing downwards are connected to the right side of the shunt pipe;

[0010] At least three discharge ports are opened on the right side of the screening box, and the right ends of the discharge ports are covered with sealing covers, and the sealing covers are fixedly sleeved on the outer peripheries of adjacent synchronous pipes.

[0011] Furthermore, an elastic spacer is connected between the periphery of the filter plate and the inner wall of the screening box, and the screening apertures of the three filter plates decrease sequentially from top to bottom.

[0012] Furthermore, support springs are connected between both sides of the lower end of the filter plate and the inner wall of the screening box, and the power ends of the electric vibrators are connected to the upper ends of adjacent filter plates.

[0013] Furthermore, the discharge ports are all close to the upper right side of the filter plate.

[0014] Furthermore, the lower end surfaces of the cleaning brushes are in contact with the upper end surfaces of the adjacent filter plates.

[0015] Furthermore, a water pump is fixed to the upper end of the screening box, and a telescopic pipe is connected between the water pump and the water pipe.

[0016] Furthermore, the lower end of the screening box is connected to a discharge pipe.

[0017] Beneficial effects of the utility model:

[0018] 1. Through the extension of the electric cylinder, it is convenient to drive all the sealing covers to open at the right end of the corresponding discharge port at the same time, and at the same time, all the cleaning brushes will be used to clean the impurities on the corresponding filter plates out of the discharge port. Compared with the existing technology, there is no need to manually disassemble and clean the impurities on the filter plates, and all the filter plates are cleaned at the same time, which effectively saves the cleaning time, thereby improving the efficiency of subsequent calcium carbonate powder screening and impurity removal;

[0019] 2. Flushing the impurities blocked on the filter plate through the flushing nozzle is conducive to ensuring the cleanliness of the filter plate, thereby ensuring the subsequent screening quality of calcium carbonate powder, and there is no need for manual disassembly and cleaning, and all filter plates are cleaned at the same time, making the filter plate cleaning process fast and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 A is a schematic diagram of the enlarged structure of the local area of ​​the utility model;

[0022] Figure 3 It is a schematic diagram of the enlarged structure of the B part of the utility model;

[0023] Figure 4 This is a schematic diagram of the top view structure of the filter plate of the utility model;

[0024] Figure 5 It is a schematic diagram of the overall cleaning work structure of the utility model;

[0025] Figure 6 It is a schematic diagram of the side structure of the shunt pipe of the utility model.

[0026] Description of reference numerals:

[0027] Screening box 1, feed hopper 2, filter plate 3, synchronous pipe 4, sealing cover 5, diverter pipe 6, cleaning brush 7, flushing nozzle 8, elastic spacer 9, electric vibrator 10, supporting spring 11, electric cylinder 12, water pump 13, telescopic pipe 14, water pipe 15, discharge pipe 17, discharge port 18. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0029] like Figure 1 As shown, in this embodiment, it includes a screening box 1 and a feed hopper 2, the feed hopper 2 is connected to the upper end of the screening box 1, at least three filter plates 3 are arranged in sequence from top to bottom in the screening box 1, the upper left side of the filter plate 3 is provided with an electric vibrator 10 fixed in the screening box 1, both sides of the lower end of the filter plate 3 are connected to the inner wall of the screening box 1 with a support spring 11, the power end of the electric vibrator 10 is connected to the upper end of the adjacent filter plate 3, the screening apertures of the three filter plates 3 decrease from top to bottom, and the lower end of the screening box 1 is connected with a discharge pipe 17.

[0030] When the calcium carbonate powder is screened and impurities are removed by the vibrating screen, the calcium carbonate powder is put into the screening box 1 through the feed hopper 2, the electric vibrator 10 is started and the filter plate 3 is driven to shake. Since the filter plate 3 is supported by the support spring 11 and the elasticity of the support spring 11 is conducive to ensuring the normal shaking of the filter plate 3, the filter plate 3 will shake and screen the calcium carbonate powder, and larger granular impurities will be filtered out by the filter plate 3. Moreover, the screening aperture of the filter plate 3 is continuously reduced from top to bottom, and at least three filter plates 3 are provided, so it is conducive to multi-stage shaking screening of the calcium carbonate powder, and it is conducive to effectively screening out granular impurities of various sizes in the calcium carbonate powder. Finally, the qualified calcium carbonate powder is discharged and collected through the discharge pipe 17.

[0031] like Figure 4 As shown, in this embodiment, an elastic spacer strip 9 is connected between the periphery of the filter plate 3 and the inner wall of the screening box 1 .

[0032] By providing an elastic partition 9 between the periphery of the filter plate 3 and the inner wall of the screening box 1, it is helpful to prevent the unscreened and impure calcium carbonate powder from falling directly onto the filter plate 3 below it, and to prevent the calcium carbonate powder from not being screened at multiple stages, thereby ensuring the screening quality.

[0033] like Figure 2 , 5 As shown, in this embodiment, an electric cylinder 12 is fixed to the right end of the feed hopper 2, and a water pipe 15 is connected to the power end of the electric cylinder 12. A synchronous pipe 4 connected to the water pipe 15 is provided above the filter plate 3, and the ends of the synchronous pipe 4 are connected to a shunt pipe 6, and the lower ends of the shunt pipes 6 are connected to a cleaning brush 7. At least three discharge ports 18 are opened on the right side of the screening box 1, and the right ends of the discharge ports 18 are covered with sealing covers 5, and the sealing covers 5 are fixedly sleeved on the outer periphery of the adjacent synchronous pipes 4. The lower end faces of the cleaning brushes 7 are in contact with the upper end faces of the adjacent filter plates 3, and the discharge ports 18 are close to the upper right side of the filter plates 3.

[0034] When it is necessary to clean the impurities on the filter plate 3, the water delivery pipe 15 is pushed to the right by the extension of the electric cylinder 12, so that the water delivery pipe 15 will pull the synchronous pipe 4, the sealing cover 5, the diverter pipe 6 and the cleaning brush 7 to the right. Since the cleaning brush 7 is in contact with the upper end surface of the filter plate 3, the impurities on the filter plate 3 will be moved to the right when the cleaning brush 7 moves to the right, and the sealing cover 5 will open at the right end of the discharge port 18 when it moves to the right, so the impurities will be smoothly pushed into the discharge port 18 and finally discharged by the discharge port 18. The material port 18 discharges impurities. In summary, through the extension of the electric cylinder 12, it is conducive to driving all the sealing covers 5 to open at the right end of the corresponding discharge port 18 at the same time, and at the same time, it will bring all the cleaning brushes 7 to clean the impurities on the corresponding filter plate 3 out of the discharge port 18. Compared with the prior art, there is no need to manually disassemble and clean the impurities on the filter plate 3, and all the filter plates 3 are cleaned at the same time, which effectively saves cleaning time, thereby helping to improve the efficiency of subsequent calcium carbonate powder screening and impurity removal.

[0035] like Figure 5-6 As shown, in this embodiment, the right side of the diversion pipe 6 is connected to a plurality of flushing nozzles 8 with nozzles facing downwards, a water pump 13 is fixed to the upper end of the screening box 1, and a telescopic pipe 14 is connected between the water pump 13 and the water pipe 15.

[0036] When it is necessary to clean the filter plate 3, the external water source is connected to the water pump 13, and then water is introduced into the telescopic tube 14, the water pipe 15, the synchronous pipe 4, the diverter pipe 6 and the flushing nozzle 8 through the water pump 13, and finally the water is sprayed onto the filter plate 3 by the flushing nozzle 8. In addition, when the electric cylinder 12 is extended and drives the water pipe 15 to move to the right, the water pipe 15 will stretch the telescopic tube 14, which is conducive to ensuring that the synchronous pipe 4, the diverter pipe 6 and the flushing nozzle 8 move normally with the water pipe 15. Therefore, the flushing nozzle 8 during the movement is conducive to comprehensive flushing of the filter plate 3, and the waste water generated by the flushing is discharged through the discharge pipe 17. In summary, the impurities blocked on the filter plate 3 are flushed by the flushing nozzle 8, which is conducive to ensuring the cleanliness of the filter plate 3, thereby ensuring the subsequent screening quality of the calcium carbonate powder, and there is no need for manual disassembly and cleaning, and all the filter plates 3 are cleaned at the same time, making the cleaning process of the filter plate 3 fast and convenient.

[0037] like Figure 1 , 5 As shown, in this embodiment, the power end of the electric cylinder 12 is connected to a water pipe 15, and a synchronous pipe 4 connected to the water pipe 15 is provided above the filter plate 3. The ends of the synchronous pipe 4 are connected to a shunt pipe 6, and the lower ends of the shunt pipes 6 are connected to a cleaning brush 7.

[0038] When the filter plate 3 is cleaned or rinsed, the water pipe 15, the synchronous pipe 4, the diversion pipe 6, the cleaning brush 7 and the flushing nozzle 8 are moved to the left and reset through the contraction of the electric cylinder 12 until the sealing cover 5 covers the discharge port 18, which is beneficial to ensure the subsequent normal screening work of the vibrating screen.

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A multi-stage vibrating screen for removing impurities from calcium carbonate powder, comprising a screening box (1) and a feed hopper (2), wherein the feed hopper (2) is connected to the upper end of the screening box (1), and is characterized in that: At least three filter plates (3) are arranged in sequence from top to bottom in the screening box (1), and an electric vibrator (10) fixed in the screening box (1) is arranged on the left side of the upper end of each filter plate (3); An electric cylinder (12) is fixed to the right end of the feed hopper (2), a water pipe (15) is connected to the power end of the electric cylinder (12), a synchronous pipe (4) connected to the water pipe (15) is provided above the filter plate (3), the end of the synchronous pipe (4) is connected to a shunt pipe (6), the lower end of the shunt pipe (6) is connected to a cleaning brush (7), and the right side of the shunt pipe (6) is connected to a plurality of flushing nozzles (8) with nozzles facing downwards; The screening box (1) has at least three discharge ports (18) on the right side, and the right ends of the discharge ports (18) are all covered with sealing covers (5), and the sealing covers (5) are all fixedly sleeved on the outer periphery of adjacent synchronous pipes (4).

2. A multi-stage vibrating screen for removing impurities from calcium carbonate powder as claimed in claim 1, characterized in that: An elastic spacer strip (9) is provided between the periphery of the filter screen plate (3) and the inner wall of the screening box (1), and the screening apertures of the three filter screen plates (3) decrease in sequence from top to bottom.

3. A multi-stage vibrating screen for removing impurities from calcium carbonate powder as claimed in claim 1, characterized in that: Support springs (11) are connected between the two sides of the lower end of the filter plate (3) and the inner wall of the screening box (1), and the power ends of the electric vibrators (10) are connected to the upper ends of adjacent filter plates (3).

4. A multi-stage vibrating screen for removing impurities from calcium carbonate powder as claimed in claim 1, characterized in that: The discharge openings (18) are all located close to the upper right side of the filter plate (3).

5. A multi-stage vibrating screen for removing impurities from calcium carbonate powder as claimed in claim 1, characterized in that: The lower end surfaces of the cleaning brushes (7) are in contact with the upper end surfaces of the adjacent filter plates (3).

6. A multi-stage vibrating screen for removing impurities from calcium carbonate powder as claimed in claim 1, characterized in that: A water pump (13) is fixed to the upper end of the screening box (1), and a telescopic pipe (14) is connected between the water pump (13) and the water delivery pipe (15).

7. A multi-stage vibrating screen for removing impurities from calcium carbonate powder as claimed in claim 1, characterized in that: The lower end of the screening box (1) is connected to a discharge pipe (17).

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