A stone washing machine for calcium carbonate production

Abstract

The utility model relates to a kind of for calcium carbonate production's stone washer, including support, drum and vibrating screen, drum is rotatably connected with support, vibrating screen is arranged in the lower drum, shaftless screw feeder is equipped in the drum, the outer edge of shaftless screw feeder is fixedly connected with drum, multiple water-lifting plates arranged in circumferential array are fixedly connected between the spiral turns of shaftless screw feeder, drain hole arranged in circumferential array is set up on the drum directly above vibrating screen. The stone washer for calcium carbonate production described in the application utilizes the water immersion space of the spiral turns between the shaftless screw feeder in the drum to form stone block, water and stone block are agitated using water-lifting plate when drum rotates, increase the contact area and cleaning time of water and stone block, improve the cleaning effect of stone block.

Description

Technical Field

[0001] This utility model relates to a stone washing machine, and more particularly to a stone washing machine for calcium carbonate production. Background Technology

[0002] Light calcium carbonate (precipitated calcium carbonate) is a crystalline product prepared from natural calcium carbonate minerals through chemical methods such as calcination, digestion, and carbonation. The quality of light calcium carbonate (precipitated calcium carbonate) largely depends on the quality of the raw material limestone. The calcination process has high requirements for the particle size of the limestone raw material, as the particle size directly affects the time required for complete decomposition. The more uniform the particle size, the more energy-efficient the calcination process.

[0003] Currently, there are two types of traditional stone washing machines: water immersion type and drum type. Drum type has high cleaning efficiency, while water immersion type has good cleaning effect. Drum type stone washing machines clean by spraying water, but the contact time and contact area between water and stone are small, resulting in poor cleaning effect. Utility Model Content

[0004] The purpose of this invention is to provide a stone washing machine for calcium carbonate production, which solves the problem that existing drum-type stone washing machines use water spraying for cleaning, resulting in limited contact time and area between water and stones, and poor cleaning effect.

[0005] To solve the above problems, this utility model provides a stone washing machine for calcium carbonate production, including a support, a drum and a vibrating screen. The drum is rotatably connected to the support, and the vibrating screen is set under the drum. A shaftless screw is installed inside the drum, and the outer edge of the shaftless screw is fixedly connected to the drum. Multiple water-lifting plates arranged in a circumferential array are fixedly connected between the screw rings of the shaftless screw. Drain holes arranged in a circumferential array are opened on the drum directly above the vibrating screen.

[0006] The stone washing machine for calcium carbonate production provided by this utility model also has the following technical features:

[0007] Furthermore, the vibrating screen includes a screen, a filter screen, and a water storage tank. The screen and filter screen are inclinedly arranged on the upper part of the water storage tank. A support platform is provided on the inner wall of the water storage tank. The screen and filter screen are placed on the support platform. A sludge discharge port is opened between the filter screen and the screen.

[0008] Furthermore, springs are provided at the bottom of the screen and the filter screen, and the other end of the springs is fixedly connected to the support platform.

[0009] Furthermore, rollers are installed on the four legs of the bracket, and the rollers rotate in contact with the roller.

[0010] Furthermore, a driven gear is fixedly connected to the roller, a motor is fixedly mounted on the bracket, and a drive gear is fixedly connected to the drive shaft of the motor, with the drive gear meshing with the driven gear.

[0011] Furthermore, a feed inlet is provided at one end of the roller, and a hopper is fixedly connected to the feed inlet.

[0012] Furthermore, the hopper and the water storage tank are connected by a water pipe, which extends into the hopper, and spray holes are opened on the water pipe extending into the hopper.

[0013] Furthermore, a water pump is installed on the water pipe.

[0014] The present invention has the following beneficial effects: The stone washing machine for calcium carbonate production described in this application utilizes the space between the spiral rings of the shaftless auger inside the drum to form a water immersion space for the stones. When the drum rotates, the water lifting plate is used to agitate the water and stones, increasing the contact area between the water and the stones and the washing time, thereby improving the cleaning effect of the stones. Attached Figure Description

[0015] Figure 1 This is a front sectional isometric schematic diagram of a stone washing machine for calcium carbonate production according to an embodiment of the present invention.

[0016] Figure 2 This invention relates to a stone washing machine for calcium carbonate production. Figure 1 Enlarged view of node A in the middle;

[0017] Figure 3 This is an isometric schematic diagram of a stone washing machine for calcium carbonate production according to an embodiment of the present invention;

[0018] Figure 4 This is a right-side cross-sectional view of a stone washing machine for calcium carbonate production according to an embodiment of the present invention.

[0019] (1-Support, 2-Drum, 3-Vibrating screen, 4-Shaftless screw conveyor, 5-Water lifting plate, 6-Drain hole, 7-Roller, 8-Driven gear, 9-Motor, 10-Drive gear, 11-Feed inlet, 12-Hopper, 13-Water pipe, 14-Spray hole, 15-Water pump, 31-Screen, 32-Filter screen, 33-Water storage tank, 34-Support platform, 35-Sludge discharge outlet, 36-Spring) Detailed Implementation

[0020] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0021] like Figures 1 to 4In the embodiment of the stone washing machine for calcium carbonate production shown in this utility model, the stone washing machine for calcium carbonate production includes a support 1, a drum 2 and a vibrating screen 3. The drum 2 is rotatably connected to the support 1. The vibrating screen 3 is arranged below the drum 2. A shaftless screw 4 is provided inside the drum 1. The outer edge of the shaftless screw 4 is fixedly connected to the drum 2. Multiple water-lifting plates 5 arranged in a circumferential array are fixedly connected between the screw rings of the shaftless screw 4. Drainage holes 6 arranged in a circumferential array are opened on the drum 2 directly above the vibrating screen 3.

[0022] Specifically, the stones to be cleaned enter the shaftless screw conveyor 4 from one end of the drum 2, and cleaning water is injected into the drum 2 to make the drum 2 rotate. When rotating, the water lifting plate 5 makes the cleaning water overcome inertia and move upward together with the stones. When it reaches a certain position, the cleaning water and stones pour downward and are stirred with the stones and cleaning water at the bottom of the drum 2. Under the influence of the shaftless screw conveyor 4, the cleaning water and stones move to the other end of the drum 2. When they move to the position of the drum 2 with the drain hole 6, the cleaning water, sludge and smaller stones flow out from the drain hole 6 and fall onto the vibrating screen 3. The small stones, sludge and cleaning water are separated, and the cleaned stones are discharged from the other end of the drum 2.

[0023] In one embodiment of this application, preferably, the vibrating screen 3 includes a screen 31, a filter screen 32, and a water storage tank 33. The screen 31 and the filter screen 32 are inclinedly arranged on the upper part of the water storage tank 33. A support platform 34 is provided on the inner wall of the water storage tank 33. The screen 31 and the filter screen 32 are placed on the support platform 34. A sludge discharge port 35 is provided between the screen 31 and the filter screen 32 for separating the washing water, sludge, and small stone particles, and for recycling the washing water and small stone particles.

[0024] In one embodiment of this application, preferably, the bottom of the screen 31 and the filter screen 32 are respectively provided with springs 36, and the other end of the springs 36 is fixedly connected to the support platform 34, for vibrating the small stone particles on the screen 31 and the sludge on the filter screen 32 downwards and flowing out from the inclined bottom end.

[0025] In one embodiment of this application, preferably, rollers 7 are installed on the four legs of the bracket 1, and the rollers 7 are in rotatable contact with the roller 2 to support the weight of the roller 2 and facilitate the rotation of the roller 2.

[0026] In one embodiment of this application, preferably, a driven gear 8 is fixedly connected to the roller 2, a motor 9 is fixedly installed on the bracket 1, and a drive gear 10 is fixedly connected to the drive shaft of the motor 9. The drive gear 10 meshes with the driven gear 8 to drive the roller 2 to rotate.

[0027] In one embodiment of this application, preferably, one end of the roller 2 is provided with a feed inlet 11, and a hopper 12 is fixedly connected to the feed inlet 11 for feeding stones.

[0028] In one embodiment of this application, preferably, the hopper 12 and the water storage tank 33 are connected by a water pipe 13, the water pipe 13 extends into the hopper 12, and the water pipe 13 extending into the hopper 12 is provided with a water spray hole 14, which is used to supply cleaning water to the drum 2 and to remove dust from the hopper 12.

[0029] In one embodiment of this application, preferably, a water pump 15 is installed on the water pipe 13 for reusing the cleaning water filtered into the water storage tank 33.

[0030] In summary, the stone washing machine for calcium carbonate production described in the above embodiments of this utility model specifically involves pouring stones into the hopper 12. During pouring, the water pump 15 is activated to supply water from the water storage tank 33 to the spray nozzle 14. The washing water and stones flow together into the drum 2, and then into the shaftless screw conveyor 4. The motor 9 is activated to drive the driven gear 8, causing the drum 2 to rotate. During rotation, the water lifting plate 5 causes the washing water to overcome inertia and move upwards along with the stones. When the water reaches a certain position, it tilts downwards, colliding with the bottom of the drum 2. The stones and washing water are stirred together. Under the influence of the shaftless screw 4, the washing water and stones move to the other end of the drum 2. When they reach the position of the drum 2 with the drain hole 6, the washing water, sludge, and small stones flow out from the drain hole 6 and fall onto the vibrating screen 3. After being filtered by the screen 31 and filter screen 32, the small stones, sludge, and washing water are separated. The washing water flows into the water storage tank 33 for reuse, the sludge flows out from the sludge discharge port 35, and the small stones flow out from the bottom of the screen 31. The washed stones are discharged from the other end of the drum 2. This device utilizes the water immersion space created between the spiral rings of the shaftless screw 4 inside the drum to wash the stones. When the drum rotates, the water lifting plate 5 agitates the water and stones, increasing the contact area between the water and the stones and the washing time, thereby improving the washing effect of the stones.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stone washing machine for calcium carbonate production, comprising a support frame, a drum, and a vibrating screen, wherein the drum is rotatably connected to the support frame, and the vibrating screen is disposed below the drum, characterized in that, The drum is equipped with a shaftless screw, the outer edge of which is fixedly connected to the drum. Multiple water-lifting plates arranged in a circular array are fixedly connected between the screw rings of the shaftless screw. Drainage holes arranged in a circular array are opened on the drum directly above the vibrating screen.

2. The stone washing machine for calcium carbonate production according to claim 1, characterized in that: The vibrating screen includes a screen, a filter screen, and a water storage tank. The screen and filter screen are inclinedly arranged on the upper part of the water storage tank. A support platform is provided on the inner wall of the water storage tank. The screen and filter screen are placed on the support platform. A sludge discharge port is opened between the filter screen and the screen.

3. The stone washing machine for calcium carbonate production according to claim 2, characterized in that: The bottom of the screen and filter screen are respectively provided with springs, and the other end of the springs is fixedly connected to the support platform.

4. The stone washing machine for calcium carbonate production according to claim 1, characterized in that: The bracket has four legs on which rollers are mounted, and the rollers are in rotational contact with the drum.

5. The stone washing machine for calcium carbonate production according to claim 4, characterized in that: A driven gear is fixedly connected to the roller, a motor is fixedly mounted on the bracket, a drive gear is fixedly connected to the drive shaft of the motor, and the drive gear meshes with the driven gear.

6. The stone washing machine for calcium carbonate production according to claim 2, characterized in that: One end of the roller is provided with a feed inlet, and a hopper is fixedly connected to the feed inlet.

7. The stone washing machine for calcium carbonate production according to claim 6, characterized in that: The hopper and the water storage tank are connected by a water pipe, which extends into the hopper and has spray holes.

8. The stone washing machine for calcium carbonate production according to claim 7, characterized in that: A water pump is installed on the water pipe.

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