Grading screening device for magnesite processing

Abstract

The utility model belongs to the technical field of magnesite processing, and particularly relates to a grading screening device for magnesite processing, which comprises a screening box and supporting legs, a dust removal device is arranged at the bottom of the screening box, the dust removal device comprises a water pumping unit, a cleaning and dust removal unit and a filtering unit, and a screening device is arranged in the screening box. According to the graded screening device for magnesite processing, ores fall onto the screening plates from the feeding pipe at the top of the screening box, then two vibration motors are started to drive the two screening plates to vibrate up and down on extension springs, so that multi-stage vibration screening of the ores is achieved, during vibration screening of the ores, water in a water storage tank is pumped into an annular pipe, and the water in the annular pipe is pumped into the annular pipe; and dust generated by vibrating and screening the ore is pressed, the situation that the dust overflows all around and is inhaled into the body of a worker, and the body health is affected is avoided, impurities on the surface of the ore can be simply washed away, and follow-up machining and using of the ore are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of magnesite processing, in particular to a grading and screening device for magnesite processing. Background Art

[0002] Magnesite is a carbonate of magnesium and one of the non-metallic minerals in China. Magnesite often contains iron, manganese, calcium, etc. Its color ranges from white to slightly yellow, blue, red, gray, and even brown-black. According to the different crystal states, it can be divided into crystalline magnesite and amorphous magnesite. In the use of existing screening equipment, when larger particles block the screen, they cannot be cleared in time and effectively, resulting in low screening efficiency, reducing the use effect of the screening device, and failing to meet the user's use needs.

[0003] For example, Chinese patent announcement No. CN213591048U discloses an efficient screening device for magnesite. When in use, the power is turned on, the vibration motor generates vibration, drives the screen frame to vibrate on the fixed frame, the material is placed on the top of the screen, the screen screens the material, and the material particles that meet the requirements pass through the screen into the first discharge pipe at the bottom of the screen frame, and the material with larger particles continuously moves downward under the drive of the vibration of the screen and enters the second discharge pipe. After a period of use, when the screen is blocked, the drive motor is started, the drive motor rotates, drives the threaded rod to rotate, and the drive rod is threadedly connected to the threaded rod. The two ends of the drive rod are fixed in the mounting groove and move up and down along the mounting groove, driving the bristles to brush the bottom of the screen back and forth, dredge the screen, improve the screening effect of the vibrating screen, and improve the screening efficiency.

[0004] However, the high-efficiency screening device for magnesite in the above application will generate a large amount of dust when screening magnesite, which will affect the health of the operator after being inhaled into the body. Therefore, it has certain limitations.

[0005] For this reason, we urgently need to provide a grading and screening device for magnesite processing. Utility Model Content

[0006] The purpose of the utility model is to provide a grading and screening device for magnesite processing, so as to solve the problem that a large amount of dust will be generated when the magnesite is screened by the high-efficiency screening device for magnesite in the above-mentioned background technology, and the dust will be inhaled by the operator to affect the health of the operator.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grading and screening device for processing magnesite, comprising a screening box and supporting legs, wherein the four supporting legs are respectively fixedly connected to the four corners of the screening box, a dust removal device is arranged at the bottom of the screening box, and a screening device is arranged inside the screening box.

[0008] The dust removal device comprises a water pumping unit, a cleaning and dust removal unit and a filtering unit.

[0009] The pumping unit includes a water tank, a water pump, and a pumping pipe. The water tank is placed below the screening box, the water pump is installed on the back of the water tank, the pumping pipe is connected to the water suction port of the water pump and extends into the interior of the water tank. The water pump is started to pump the water inside the water tank through the pumping pipe to the interior of the cleaning and dust removal unit for spraying to suppress dust.

[0010] A further improvement is that the cleaning and dust removal unit includes a water pipe, an annular pipe, and a nozzle. The water pipe is fixedly connected to the water outlet of a water pump, the annular pipe is fixedly connected to the top wall of the screening box, and the top of the water pipe extends into the interior of the annular pipe. Several nozzles are fixedly connected to the bottom of the annular pipe in an annular shape. Water flows into the interior of the annular pipe through the water pipe and is sprayed out from the nozzle, thereby suppressing the dust generated by the vibrating screening of the ore, preventing the dust from overflowing and being inhaled into the body of the staff, affecting their health. Impurities on the surface of the ore can also be simply rinsed, facilitating the subsequent processing and use of the ore.

[0011] A further improvement is that the filter unit includes a reflux pipe, a filter plate, a sealing plate, and a pull ring, the reflux pipe is fixedly connected to the bottom center of the screening box, the filter plate is installed inside the water tank, the sealing plate is fixedly connected to the left end of the filter plate, and the pull ring is fixedly connected to the left outer surface of the sealing plate.

[0012] A further improvement is that a discharge chute is provided on the left outer surface of the water tank, and the filter plate is slidably connected to the inside of the discharge chute. The cleaned sewage flows back into the water tank through the reflux pipe, and impurities and fine slag in the sewage fall onto the filter plate. The filter plate is removed from the inside of the discharge chute by regularly pulling the pull ring, and the slag therein can be recycled.

[0013] A further improvement is that the screening device includes a mounting frame, a tension spring, a vibration motor, and a screen plate. The mounting frame is fixedly connected to the upper interior of the screening box. The four tension springs are respectively fixedly connected to the four corners of the upper surface of the mounting frame. The vibration motor is installed on the right side of the upper surface of the mounting frame. The screen plate is fixedly connected to the top of the tension spring. The ore falls from the feed pipe at the top of the screening box onto the screen plate, and then the vibration motor is started to drive the screen plate to vibrate up and down on the tension spring, thereby realizing vibration screening of the ore.

[0014] A further improvement is that there are two groups of screening devices, and the other group of screening devices is installed at the lower part of the screening box, and the mesh number of the sieve plate in the lower screening device is smaller than that of the upper sieve plate. The bottom screening device is started synchronously, and the mesh numbers of the two sieve plates are different, thereby realizing multi-stage screening of the ore.

[0015] A further improvement is that the sieve plates are all installed at an angle, and discharge ports are respectively opened on the left and right outer surfaces of the screening box, and ores of two different specifications are discharged through the discharge ports respectively, thereby completing the screening and discharge of the ore.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In this grading and screening device for processing magnesite, the ore falls from the feed pipe on the top of the screening box onto the screen plate, and then two vibration motors are started to drive the two screen plates to vibrate up and down on the tension springs, thereby realizing multi-stage vibration screening of the ore.

[0018] 2. The grading and screening device for processing magnesite ore, when the ore is vibrated and screened, pumps the water in the water tank to the inside of the annular pipe and sprays it out from the nozzle, thereby suppressing the dust generated by the vibrating and screening ore to prevent the dust from overflowing and being inhaled by the workers, affecting their health. It can also simply wash away the impurities on the surface of the ore, which is convenient for the subsequent processing and use of the ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural schematic diagram of the utility model;

[0020] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the screening box of the utility model;

[0022] Figure 4 It is a schematic diagram of the rear cross-sectional structure of the dust removal device of the utility model.

[0023] In the figure: 1. screening box; 2. supporting legs; 301. water storage tank; 302. water pump; 303. water suction pipe; 304. water delivery pipe; 305. annular pipe; 306. nozzle; 307. return pipe; 308. filter plate; 309. sealing plate; 310. pull ring; 401. mounting frame; 402. tension spring; 403. vibration motor; 404. screen plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A grading and screening device for processing magnesite comprises a screening box 1 and supporting legs 2. Four supporting legs 2 are respectively fixedly connected to four corners of the screening box 1. A dust removal device is arranged at the bottom of the screening box 1. A screening device is arranged inside the screening box 1.

[0028] The dust removal device comprises a water pumping unit and a cleaning and dust removal unit.

[0029] The pumping unit includes a water tank 301, a water pump 302, and a pumping pipe 303. The water tank 301 is placed below the screening box 1, the water pump 302 is installed on the back of the water tank 301, the pumping pipe 303 is connected to the water suction port of the water pump 302, and extends into the interior of the water tank 301. When the water pump 302 is started, the water in the water tank 301 is pumped through the pumping pipe 303 to the interior of the cleaning and dust removal unit for spraying to suppress dust.

[0030] The cleaning and dust removal unit includes a water pipe 304, an annular pipe 305, a nozzle 306, and a return pipe 307. The water pipe 304 is fixedly connected to the water outlet of the water pump 302, the annular pipe 305 is fixedly connected to the top wall of the screening box 1, and the top of the water pipe 304 extends into the interior of the annular pipe 305. Several nozzles 306 are fixedly connected to the bottom of the annular pipe 305 in an annular shape. The return pipe 307 is fixedly connected to the bottom center of the screening box 1 and extends into the interior of the water storage tank 301. Water flows into the interior of the annular pipe 305 through the water pipe 304 and is sprayed out from the nozzle 306, thereby suppressing the dust generated by the vibrating screening of the ore to prevent the dust from overflowing and being inhaled by the staff to affect their health. Impurities on the surface of the ore can also be simply rinsed to facilitate the subsequent processing and use of the ore.

[0031] The screening device includes a mounting frame 401, a tension spring 402, a vibration motor 403, and a screen plate 404. The mounting frame 401 is fixedly connected to the upper part of the screening box 1. Four tension springs 402 are respectively fixedly connected to the four corners of the upper surface of the mounting frame 401. The vibration motor 403 is installed on the right side of the upper surface of the mounting frame 401. The screen plate 404 is fixedly connected to the top of the tension spring 402. The ore falls from the feed pipe on the top of the screening box 1 onto the screen plate 404, and then the vibration motor 403 is started to drive the screen plate 404 to vibrate up and down on the tension spring 402, thereby realizing vibration screening of the ore.

[0032] There are two groups of screening devices. The other group of screening devices is installed at the lower part of the screening box 1, and the mesh number of the sieve plate 404 in the lower screening device is smaller than that of the upper sieve plate 404. The bottom screening device is started synchronously, and the mesh numbers of the two sieve plates 404 are different, thereby realizing multi-stage screening of the ore.

[0033] The sieve plates 404 are all installed at an angle, and discharge ports are respectively opened on the left and right outer surfaces of the screening box 1. Ores of two different specifications are discharged through the discharge ports respectively, completing the screening and discharge of the ores.

[0034] Embodiment 2:

[0035] On the basis of Example 1, the dust removal device also includes a filtering unit, which includes a return pipe 307, a filter plate 308, a sealing plate 309, and a pull ring 310. The return pipe 307 is fixedly connected to the bottom center of the screening box 1, the filter plate 308 is installed inside the water tank 301, the sealing plate 309 is fixedly connected to the left end of the filter plate 308, and the pull ring 310 is fixedly connected to the left outer surface of the sealing plate 309.

[0036] A discharge chute is provided on the left outer surface of the water tank 301, and the filter plate 308 is slidably connected to the inside of the discharge chute. The cleaned sewage flows back into the water tank 301 through the reflux pipe 307, and the impurities and fine slag in the sewage fall on the filter plate 308. The filter plate 308 is removed from the inside of the discharge chute by pulling the pull ring 310 regularly, and the slag therein can be recycled.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used 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", "comprise" 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, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A grading and screening device for processing magnesite, comprising a screening box (1) and supporting legs (2), wherein four supporting legs (2) are respectively fixedly connected to four corners of the screening box (1), characterized in that: A dust removal device is provided at the bottom of the screening box (1), and a screening device is provided inside the screening box (1); The dust removal device includes a pumping unit, a cleaning and dust removal unit and a filtering unit; The pumping unit comprises a water tank (301), a water pump (302), and a water pumping pipe (303); the water tank (301) is placed below the screening box (1); the water pump (302) is installed on the back of the water tank (301); and the water pumping pipe (303) is connected to the water pumping port of the water pump (302) and extends into the interior of the water tank (301).

2. A grading and screening device for processing magnesite according to claim 1, characterized in that: The cleaning and dust removal unit comprises a water pipe (304), an annular pipe (305), and a nozzle (306); the water pipe (304) is fixedly connected to the water outlet of a water pump (302); the annular pipe (305) is fixedly connected to the top wall of a screening box (1); and the top of the water pipe (304) extends into the interior of the annular pipe (305); and a plurality of nozzles (306) are fixedly connected to the bottom of the annular pipe (305) in an annular shape.

3. A grading and screening device for processing magnesite according to claim 2, characterized in that: The filter unit comprises a return pipe (307), a filter plate (308), a sealing plate (309), and a pull ring (310); the return pipe (307) is fixedly connected to the bottom center of the screening box (1); the filter plate (308) is installed inside the water storage tank (301); the sealing plate (309) is fixedly connected to the left end of the filter plate (308); and the pull ring (310) is fixedly connected to the left outer surface of the sealing plate (309).

4. A grading and screening device for processing magnesite according to claim 3, characterized in that: A discharge chute is provided on the left outer surface of the water storage tank (301), and the filter plate (308) is slidably connected to the inside of the discharge chute.

5. A grading and screening device for processing magnesite according to claim 4, characterized in that: The screening device comprises a mounting frame (401), a tension spring (402), a vibration motor (403), and a screen plate (404); the mounting frame (401) is fixedly connected to the upper part of the screening box (1); the four tension springs (402) are respectively fixedly connected to the four corners of the upper surface of the mounting frame (401); the vibration motor (403) is installed on the right side of the upper surface of the mounting frame (401); and the screen plate (404) is fixedly connected to the top of the tension spring (402).

6. A grading and screening device for processing magnesite according to claim 5, characterized in that: There are two groups of screening devices in total, and the other group of screening devices is installed at the lower part of the screening box (1), and the mesh number of the screening plate (404) in the lower screening device is smaller than that of the upper screening plate (404).

7. A grading and screening device for processing magnesite according to claim 6, characterized in that: The sieve plates (404) are all installed at an angle, and discharge ports are respectively provided on the left and right outer surfaces of the sieving box (1).

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