Auxiliary device for preparing strontium carbonate

Abstract

The present invention discloses an auxiliary device for preparing strontium carbonate, which includes a base, on which a crushing device is connected via a plurality of vertical columns, two groups of crushing wheel groups are meshedly arranged in the crushing device, a grinding roller is rotatably arranged directly below the crushing wheel group, an L-shaped feeding barrel is obliquely connected below the crushing device, the end of the feeding barrel is connected to a temporary storage bin, the lower end of the temporary storage bin is connected to a reaction tank via a connecting pipe, a transmission auger is coaxially arranged in the connecting pipe, and a screening component is arranged in the feeding barrel.

Description

Technical Field

[0001] The invention relates to the technical field of strontium carbonate preparation, and in particular to a strontium carbonate preparation auxiliary device. Background Art

[0002] Strontium carbonate is an important chemical raw material and is widely used in the electronics, optics, ceramics and other industries. In industry, celestite (the main component of which is strontium sulfate and contains insoluble impurities) is often used as a raw material to prepare strontium carbonate. The celestite is usually crushed to a certain particle size (to increase its decomposition rate), then mixed with a sodium carbonate solution and heated at 90°C for 1-2 hours. After filtering and washing, strontium carbonate is obtained. When producing strontium carbonate powder, existing equipment is affected by factors such as grinding media, abrasives, grinding time, speed, and temperature, resulting in uneven particle size distribution of celestite powder and poor raw material decomposition rate. In addition, celestite that does not meet the particle size requirements tends to accumulate on the filter screen, affecting the screening efficiency of the celestite powder.

[0003] Therefore, it is necessary to provide an auxiliary device for preparing strontium carbonate to solve the problems mentioned in the above background technology. Summary of the Invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a strontium carbonate preparation auxiliary device, comprising: a base, on which a crushing device is connected through a plurality of vertical columns, two sets of crushing wheel groups are meshedly arranged in the crushing device, a grinding roller is rotatably arranged directly below the crushing wheel group, an L-shaped feeding barrel is obliquely connected to the bottom of the crushing device, the end of the feeding barrel is connected to a temporary storage bin, the lower end of the temporary storage bin is connected to a reaction tank through a connecting pipe, a transmission auger is coaxially arranged in the connecting pipe, and a screening component is arranged in the feeding barrel.

[0005] As a preferred technical solution of the present invention, the screening assembly includes:

[0006] The rail frame is fixedly arranged on both side walls of the feeding barrel close to the crushing device at an angle, and the inclination direction of the rail frame is opposite to that of the feeding barrel. Each relative side of the rail frame is inclined downward and provided with a slot, and a replaceable filter plate is fixed in the slot. A plurality of filter holes are evenly arranged on the filter plate, and the lower end of the filter plate extends out of the feeding barrel, and the filter plate can isolate and screen the cross section of the feeding barrel where it is located.

[0007] As a preferred technical solution of the present invention, each of the rail frames is symmetrically provided with a slide groove on the opposite sides thereof, a limiting mechanism is slidingly arranged in the slide groove, the upper end of each limiting mechanism is commonly connected with a telescopic push plate, the upper end of the telescopic push plate is hinged to the inner corner of the feeding barrel, the telescopic push plate is fitted with the upper end surface of the filter plate, the lower end of the telescopic push plate is hinged to a driving cylinder, the other end of the driving cylinder is hinged to the column, and the feeding barrel is provided with an avoidance opening at the driving cylinder.

[0008] As a preferred technical solution of the present invention, the limiting mechanism includes:

[0009] A pulley is provided with a magnetic column inside, two groups of pulleys are arranged at intervals, and a sliding limit is set in each of the sliding grooves. The pulleys are hinged by a telescopic rod, and a support spring is provided on the outside of the telescopic rod. A support arm is rotatably provided at the outer end of each pulley, and each support arm is hinged to a connecting rod, which is hinged to the lower end of the telescopic push plate.

[0010] As a preferred technical solution of the present invention, the rail frame is divided into a horizontal section and an inclined section, the filter plate is located in the inclined section, a slider is slidably provided at the bottom of the inclined section, a magnetic block is provided on one side of the slider facing the rail frame, and a corrugated protrusion is provided on the other side.

[0011] As a preferred technical solution of the present invention, a material receiving plate is provided at the bottom inner side of the feeding barrel along its inclined direction, the lower part of the material receiving plate is hinged to the bottom wall of the feeding barrel, an adjusting spring is provided at the upper bottom of the material receiving plate and elastically connected to the feeding barrel, and shifting teeth are provided corresponding to the corrugated protrusions on the side surface.

[0012] As a preferred technical solution of the present invention, a driving plate is provided at the grinding roller to be able to adjust the spacing between the grinding rollers.

[0013] As a preferred technical solution of the present invention, each rail frame is provided with a sealing strip above the slide groove, and an inclined guide slope is provided on the upper end surface of the rail frame.

[0014] Compared with the prior art, the present invention provides an auxiliary device for preparing strontium carbonate, which has the following beneficial effects:

[0015] In the present invention, a detachable filter plate is provided at the screening assembly to meet the production of celestite powders of different particle sizes. At the same time, the rail frame is specially designed. When the telescopic push plate moves back and forth in the inclined section, it can push the celestite powder above it back and forth, which is convenient for screening. When it enters the horizontal section, it can collect the celestite that does not meet the particle size requirements, which is convenient for secondary crushing and grinding, avoiding accumulation at the filter plate and reducing the screening efficiency. The setting of the limiting mechanism ensures smooth movement of the telescopic push plate to avoid jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an auxiliary device for preparing strontium carbonate;

[0017] Figure 2 This is a schematic diagram of the structure of a screening component of a strontium carbonate preparation auxiliary device;

[0018] Figure 3 This is an enlarged structural diagram of position A of a strontium carbonate preparation auxiliary device;

[0019] In the figure: 1. Base; 2. Column; 3. Crushing device; 4. Crushing wheel group; 5. Grinding roller; 51. Drive plate; 6. Screening assembly; 61. Rail frame; 62. Filter plate; 63. Slide; 64. Telescopic push plate; 65. Drive cylinder; 66. Sealing strip; 67. Guide slope; 68. Limiting mechanism; 69. Slider; 681. Pulley; 682. Telescopic rod; 683. Support spring; 684. Support arm; 685. Connecting rod; 7. Feed barrel; 71. Receiving plate; 72. Adjusting spring; 8. Temporary storage bin; 9. Connecting pipe; 10. Transmission auger; 11. Reactor. DETAILED DESCRIPTION

[0020] See also Figure 1-3 The present invention provides an auxiliary device for preparing strontium carbonate, comprising:

[0021] A base 1 is provided with a crushing device 3 connected to the top through multiple vertical columns 2. Two groups of crushing wheel groups 4 are meshed in the crushing device 3. A grinding roller 5 is rotatably provided directly below the crushing wheel group 4. An L-shaped feeding barrel 7 is obliquely connected to the bottom of the crushing device 3. The end of the feeding barrel 7 is connected to a temporary storage bin 8. The lower end of the temporary storage bin 8 is connected to a reaction tank 11 through a connecting pipe 9. A transmission auger 10 is coaxially provided in the connecting pipe 9. A screening component 6 is provided in the feeding barrel 7.

[0022] It should be explained that the celestine raw material is placed in the crushing device 3, first preliminarily crushed by the crushing wheel group 4, and then finely crushed by the grinding roller 5. After that, the celestine powder that meets the particle size requirements is screened by the screening component 6 and collected in the temporary storage bin 8. Finally, it is quantitatively added to the reaction tank 11 through the transmission auger 10 to heat and react with the sodium carbonate solution to obtain strontium carbonate containing impurities, and then filtered, washed, and other operations to obtain pure strontium carbonate.

[0023] In this embodiment, the screening assembly 6 includes:

[0024] The rail frame 61 is fixedly arranged on both side walls of the feeding barrel 7 close to the crushing device 3 at an angle. The rail frame 61 is in an opposite direction to the feeding barrel 7. Each side of the rail frame 61 is inclined downward and provided with a slot. A replaceable filter plate 62 is provided in the slot. A plurality of filter holes are evenly provided on the filter plate 62. The lower end of the filter plate 62 extends out of the feeding barrel 7, and the filter plate 62 can isolate and screen the cross section of the feeding barrel 7 where it is located.

[0025] That is to say, the celestite powder flowing into the feeding tube 7 is screened by the filter plate 62 to ensure the uniformity of the particle size, and the filter plate 62 can be disassembled and replaced to meet the screening requirements of celestite powders of different particle sizes.

[0026] In this embodiment, the opposite sides of each rail frame 61 are symmetrically provided with a slide groove 63, and a limiting mechanism 68 is slidingly set in the slide groove 63. The upper end of each limiting mechanism 68 is commonly connected to a telescopic push plate 64, and the upper end of the telescopic push plate 64 is hinged to the inner corner of the feeding barrel 7. The telescopic push plate 64 is in contact with the upper end surface of the filter plate 62, and the lower end of the telescopic push plate 64 is hinged to a drive cylinder 65, and the other end of the drive cylinder 65 is hinged to the column 2. The feeding barrel 7 is provided with an avoidance opening at the drive cylinder 65.

[0027] It needs to be explained that when the finely ground lapis lazuli powder falls onto the filter plate 62 and the telescopic push plate 64, the drive cylinder 65 is controlled to reciprocate and retract, pushing the telescopic push plate 64 to move back and forth along the slide 63, driving the lapis lazuli powder above it to move up and down and be screened by the filter plate 62. The setting of the telescopic push plate 64 enables it to adapt to the cross-sectional width at different positions, avoiding the falling of the lapis lazuli powder during movement.

[0028] In this embodiment, the limiting mechanism 68 includes:

[0029] The pulley 681 has a magnetic column inside, and two groups of pulleys 681 are arranged at intervals, and the sliding limit is set in each of the slide grooves 63. The pulleys 681 are hinged by a telescopic rod 682, and a support spring 683 is provided on the outside of the telescopic rod 682. The outer end of each pulley 681 is rotatably provided with a support arm 684, and each support arm 684 is hinged to a connecting rod 685, and the connecting rod 685 is hinged to the lower end of the telescopic push plate 64.

[0030] It needs to be explained that in the initial state, under the elastic force of the support spring 683, the angle between the two sets of support arms 684 is acute, and the support arms 684 are always located at the lower part of the slide groove 63. The support spring 683 can pull the connecting rod 685, so that the telescopic push plate 64 is always in contact with the surface of the filter plate 62. The setting of the pulley 681 ensures the smooth rotation of the telescopic push plate 64.

[0031] In this embodiment, the rail frame 61 is divided into a horizontal section and an inclined section. The filter plate 62 is located in the inclined section. A slider 69 is slidably provided at the bottom of the inclined section. A magnetic block is provided on one side of the slider 69 facing the rail frame 61, and a corrugated protrusion is provided on the other side.

[0032] It should be explained that, in the screening state, the drive cylinder 65 only drives the telescopic push plate 64 to move in the inclined section. After screening for a period of time, the lapis lazuli crushing is stopped. After the upper residual material is screened, the drive cylinder 65 is controlled to drive the telescopic push plate 64 to move to the horizontal section to discharge the lapis lazuli above it that does not meet the particle size requirements. Preferably, a collection box is provided under the horizontal section of the rail frame 61 to facilitate its collection and add it again to the crushing device 3 for secondary crushing until there is no residual material.

[0033] In this embodiment, a receiving plate 71 is provided at the inner bottom of the feeding barrel 7 along its inclined direction, the lower part of the receiving plate is hinged to the bottom wall of the feeding barrel 7, an adjusting spring 72 is provided at the upper bottom of the receiving plate 71 and elastically connected to the feeding barrel 7, and a shifting tooth is provided corresponding to the upper end of the receiving plate 71 and the corrugated protrusion on the side.

[0034] That is to say, when the pulley 681 moves along the inclined section chute 63, it can drive the slider 69 to move synchronously under the adsorption action of the magnetic force. Here, when the shifting teeth contact the corrugated protrusion of the slider 69, the receiving plate 71 vibrates, causing the celestite powder to enter the temporary storage bin 8, thereby preventing the celestite powder from accumulating in the feeding barrel 7.

[0035] In this embodiment, a driving plate 51 is provided at the grinding roller 5 to adjust the spacing between the grinding rollers 5 .

[0036] In this embodiment, a sealing strip 66 is adhered to each rail frame 61 above the slide groove 63 , and an inclined guide slope 67 is formed on the upper end surface of each rail frame 61 .

[0037] It should be explained that the sealing strip 66 is hollow and made of flexible material with an M-shaped cross-section, which can seal between the upper end of the rail frame 61 and the feeding barrel 7. In addition, the lower end of the telescopic push plate 64 is set to correspond to the shape of the guide slope 67.

[0038] During the specific implementation, the celestine raw material is placed in a crushing device, first crushed by a crushing wheel group, and then finely crushed by a grinding roller. After that, the celestine powder that meets the particle size requirements is screened by a screening component and collected in a temporary storage bin. Finally, it is quantitatively added to a reaction tank through a transmission auger to heat and react with a sodium carbonate solution to produce strontium carbonate containing impurities. After filtering, washing, and other operations, pure strontium carbonate is obtained.

[0039] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A strontium carbonate preparation auxiliary device, characterized in that: include: A base (1) is connected to a crushing device (3) above the base via a plurality of vertical columns (2), two groups of crushing wheel groups (4) are meshedly arranged in the crushing device (3), a grinding roller (5) is rotatably arranged directly below the crushing wheel group (4), an L-shaped feeding cylinder (7) is obliquely connected and arranged below the crushing device (3), the end of the feeding cylinder (7) is connected to a temporary storage bin (8), the lower end of the temporary storage bin (8) is connected to a reaction tank (11) via a connecting pipe (9), a transmission auger (10) is coaxially arranged in the connecting pipe (9), and a screening assembly (6) is arranged in the feeding cylinder (7); The screening assembly (6) includes a rail frame (61), the rail frame (61) is fixedly arranged on both side walls of the feeding barrel (7) close to the crushing device (3), the rail frame (61) is tilted in the opposite direction to the feeding barrel (7), and each of the rail frames (61) is provided with a slot tilted downward on the relative side, and a replaceable filter plate (62) is fixed in the slot, and a plurality of filter holes are evenly arranged on the filter plate (62). The lower end of the filter plate (62) extends out of the feeding barrel (7), and the filter plate (62) can isolate and screen the cross section of the feeding barrel (7) where it is located; A slide groove (63) is symmetrically provided on the opposite side surfaces of each rail frame (61), and a limiting mechanism (68) is slidingly provided in the slide groove (63). The upper end of each limiting mechanism (68) is commonly connected with a telescopic push plate (64), and the upper end of the telescopic push plate (64) is hinged to the inner corner of the feeding barrel (7). The telescopic push plate (64) is in contact with the upper end surface of the filter plate (62). The lower end of the telescopic push plate (64) is hinged to a driving cylinder (65), and the other end of the driving cylinder (65) is hinged to the column (2). The feeding barrel (7) is provided with an avoidance opening at the driving cylinder (65); The limiting mechanism (68) includes a pulley (681), a magnetic column is provided inside the pulley (681), two groups of pulleys (681) are arranged at intervals, and the sliding limit is set in each of the sliding grooves (63), and the pulleys (681) are hinged by a telescopic rod (682), and a support spring (683) is provided on the outer side of the telescopic rod (682). The outer end of each pulley (681) is rotatably provided with a support arm (684), and each support arm (684) is hinged to a connecting rod (685) in common, and the connecting rod (685) is hinged to the lower end of the telescopic push plate (64); The rail frame (61) is divided into a horizontal section and an inclined section. The filter plate (62) is located in the inclined section. A slider (69) is slidably provided at the bottom of the inclined section. A magnetic block is provided on one side of the slider (69) facing the rail frame (61), and a corrugated protrusion is provided on the other side.

2. A strontium carbonate preparation auxiliary device according to claim 1, characterized in that: A receiving plate (71) is provided at the bottom of the feeding barrel (7) along its inclined direction, the lower part of the receiving plate is hinged to the bottom wall of the feeding barrel (7), an adjusting spring (72) is provided at the bottom of the receiving plate (71) and elastically connected to the feeding barrel (7), and shifting teeth are provided at the upper end of the receiving plate (71) and the corrugated protrusion on the side surface.

3. The auxiliary device for preparing strontium carbonate according to claim 1, wherein: The grinding rollers (5) are provided with driving plates (51) capable of adjusting the spacing between the grinding rollers (5).

4. The auxiliary device for preparing strontium carbonate according to claim 1, wherein: Each rail frame (61) is located above the slide groove (63) and is bonded with a sealing strip (66), and the upper end surface of the rail frame (61) is provided with an inclined guide slope (67).

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