Dustproof limestone crushing and conveying device

Abstract

The present application relates to the technical field of limestone conveying, and discloses a dustproof limestone crushing and conveying device, which comprises a workbench, a feeding pipe fixedly installed on the workbench, a discharging pipe slidingly installed on the workbench, a blockage prevention assembly installed between the discharging pipe and the feeding pipe, and a transmission assembly installed on the workbench. When limestone powder is fed into the feeding pipe, the limestone powder will absorb condensed water on the wall of the feeding pipe, resulting in the bonding of the limestone powder into a block in the feeding pipe. Since the mass of the bonding block is greater than that of the limestone powder particles, when the bonding block passes through the blockage prevention assembly, the bonding block will fall into the recess cavity in the built-in corrugated pipe at the bottom, then the motor drives the sliding connection ring to move towards the fixed connection ring through the screw rod, the recess cavity of the built-in corrugated pipe is compressed, the bonding block is clamped in the recess cavity, the bonding block is prevented from being conveyed towards the discharging pipe, and the discharge opening is blocked.

Description

Technical Field

[0001] This invention relates to the field of limestone conveying technology, and specifically to a dustproof limestone crushing and conveying device. Background Technology

[0002] Limestone is an indispensable building material. Limestone is usually transported by pipeline to achieve closed-loop transportation, which effectively prevents dust from flying and reduces environmental pollution.

[0003] The principle of pipeline transportation is to introduce compressed air into the pipeline, so that the limestone particles form a uniform suspended flow state under the action of airflow, thereby reducing the transportation resistance and realizing long-distance, high-flow transportation.

[0004] Existing technologies for limestone pipeline transportation present the following technical problems: First, for outdoor pipelines, condensation may occur inside due to temperature differences. For example, in some open-air pipelines, the temperature drops at night, and moisture in the air easily condenses into water droplets on the pipeline surface. When transporting limestone powder, the limestone powder absorbs moisture from the pipe wall, causing it to clump together inside the pipeline. Under the action of compressed gas, these clumps are transported along the pipe wall towards the outlet, easily causing poor discharge or blockage. Second, existing technologies cannot utilize the clumps formed after limestone powder absorbs water inside the pipeline, resulting in material waste. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a dustproof limestone crushing and conveying device.

[0006] The objective of this invention can be achieved through the following technical solutions: A dustproof limestone crushing and conveying device includes a worktable, a feed pipe fixedly installed on the worktable, a discharge pipe slidably installed on the worktable, an anti-clogging component installed between the discharge pipe and the feed pipe, and a transmission component installed on the worktable. The transmission component includes a motor, a fixed connecting ring, and a sliding connecting ring. The feed pipe is connected to the anti-clogging component through the fixed connecting ring, and the discharge pipe is connected to the anti-clogging component through the sliding connecting ring. A chute is installed on the worktable, and the sliding connecting ring is slidably installed inside the chute. The output end of the motor is connected to a lead screw, and the lead screw is drivenly connected to the sliding connecting ring. The anti-clogging component includes an internal corrugated pipe and an external corrugated pipe sleeved on the internal corrugated pipe. The two ends of the external corrugated pipe and the internal corrugated pipe are respectively rotatably installed inside the fixed connecting ring and the sliding connecting ring. When the motor drives the sliding connecting ring to move closer to the fixed connecting ring through the lead screw, the motor drives the external corrugated pipe to rotate. When the motor drives the sliding connecting ring to move away from the fixed connecting ring, the motor drives the internal corrugated pipe to rotate.

[0007] As a further aspect of the present invention: an outer hole is formed on the external corrugated pipe, and an inner hole is formed on the internal corrugated pipe.

[0008] As a further aspect of the present invention: a groove is formed in the inner wall of the built-in corrugated pipe, and a moisture-absorbing sponge is installed inside the groove, and the groove is connected to the inner hole.

[0009] As a further embodiment of the present invention: a forward ratchet gear and a reverse ratchet gear are installed on the output shaft of the motor, and a gear ring one and a gear ring two are respectively installed on the external bellows and the internal bellows. The forward ratchet gear meshes with the gear ring two through the gear two, and the reverse ratchet gear meshes with the gear ring one through the gear one.

[0010] As a further embodiment of the present invention: the forward ratchet includes a ratchet wheel with a ratchet groove inside, a pawl is mounted on the output shaft of the motor, a spring is mounted on the pawl, and the pawl engages with the ratchet groove.

[0011] As a further embodiment of the present invention: the top port of the feed pipe is connected to a crusher, and the other port of the feed pipe is connected to a Roots blower.

[0012] As a further embodiment of the present invention: a baffle is installed on the slide groove, the baffle is located at the top of the lead screw, and a drainage hole is opened on the side wall of the slide groove, and the water collected in the drainage hole is discharged through the baffle.

[0013] As a further aspect of the present invention: the worktable is connected to the feed pipe via a fixed seat, and the worktable is connected to the discharge pipe via a sliding assembly; the sliding assembly includes a guide rail mounted on the worktable and a slide block mounted at the bottom of the discharge pipe, with the slide block and the guide rail slidingly engaged.

[0014] The beneficial effects of this invention are: (1) When the limestone powder of the present invention is fed into the feed pipe, the limestone powder will absorb the condensate on the wall of the feed pipe, causing it to stick together in the feed pipe. Since the mass of the sticky block is greater than that of the limestone powder particles, when the sticky block passes through the anti-blocking component, the sticky block will sink into the cavity in the bottom built-in corrugated pipe. Then the motor drives the sliding connecting ring to move closer to the fixed connecting ring through the screw, the cavity of the built-in corrugated pipe is compressed, and the sticky block is clamped inside the cavity, preventing the sticky block from being conveyed to the discharge pipe, resulting in the outlet being blocked.

[0015] (2) As the sliding connecting ring continues to move closer to the fixed connecting ring, the adhesive block in the cavity is squeezed, and its moisture is absorbed by the moisture-absorbing sponge. When the built-in bellows is compressed to its limit, that is, the two concave walls of the built-in bellows are in contact, and the outer hole on the outer bellows is connected to the inner hole on the built-in bellows. The moisture squeezed out of the adhesive block and the moisture in the moisture-absorbing sponge are discharged through the inner and outer holes to the anti-clogging component. Because the two concave walls of the built-in bellows are in contact, the built-in bellows can prevent compressed gas from being discharged through the inner and outer holes, preventing gas leakage from causing the conveying function to fail.

[0016] (3) The motor of the present invention drives the sliding connecting ring to move away from the fixed connecting ring through the lead screw. The external corrugated pipe and the internal corrugated pipe gradually return to their original shape. At the same time, the output shaft of the motor drives the internal corrugated pipe to rotate through the reverse ratchet gear. The limestone powder retained in the cavity of the internal corrugated pipe rotates to the top of the internal corrugated pipe, so that the limestone powder restored in the cavity of the internal corrugated pipe falls down from the top of the internal corrugated pipe and is sent into the discharge pipe for reuse by compressed gas. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the transmission assembly; Figure 4 This is a schematic diagram of the overall structure of the anti-blocking component; Figure 5 This is a schematic diagram of the connection structure between the external corrugated pipe and the internal corrugated pipe; Figure 6 yes Figure 5 Enlarged view of the structure of part A; Figure 7 This is a schematic diagram of the connection structure between the transmission component and the anti-blocking component; Figure 8 This is a schematic diagram of a forward ratchet and a reverse ratchet. Figure 9 This is a schematic diagram of the overall structure of the forward ratchet.

[0019] In the diagram: 1. Workbench; 2. Fixed base; 3. Sliding assembly; 301. Guide rail; 302. Slide; 4. Discharge pipe; 5. Feed pipe; 6. Anti-blocking assembly; 601. External corrugated pipe; 602. Internal corrugated pipe; 603. Gear ring one; 604. Gear ring two; 605. Moisture-absorbing sponge; 606. Groove; 607. Inner hole; 608. Outer hole; 8. Transmission assembly; 801. Motor; 802. Fixed connecting ring; 803. Sliding connecting ring; 804. Slide groove; 805. Lead screw; 806. Baffle; 807. Drain hole; 808. Forward ratchet; 8081. Ratchet; 8082. Ratchet groove; 8083. Pawl; 8084. Spring; 809. Reverse ratchet; 810. Gear two; 811. Gear one. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-9 As shown, this invention is a dustproof limestone crushing and conveying device, comprising a workbench 1, a feed pipe 5 fixedly installed on the workbench 1, a discharge pipe 4 slidably installed on the workbench 1, an anti-blocking component 6 installed between the discharge pipe 4 and the feed pipe 5, and a transmission component 8 installed on the workbench 1; the transmission component 8 includes a motor 801, a fixed connecting ring 802, and a sliding connecting ring 803, the feed pipe 5 being connected to the anti-blocking component 6 via the fixed connecting ring 802, and the discharge pipe 4 being connected to the anti-blocking component 6 via the sliding connecting ring 803; a slide groove 804 is installed on the workbench 1, the sliding connecting ring 803 is slidably installed inside the slide groove 804, and the output end of the motor 801... A connecting screw 805 is connected to a sliding connecting ring 803 via a transmission connection. The anti-blocking component 6 includes a built-in bellows 602 and an external bellows 601 sleeved on the built-in bellows 602. The two ends of the external bellows 601 and the built-in bellows 602 are respectively rotatably installed inside the fixed connecting ring 802 and the sliding connecting ring 803. When the motor 801 drives the sliding connecting ring 803 to move closer to the fixed connecting ring 802 via the screw 805, the motor 801 drives the external bellows 601 to rotate. When the motor 801 drives the sliding connecting ring 803 to move away from the fixed connecting ring 802, the motor 801 drives the built-in bellows 602 to rotate.

[0022] Specifically, the top port of the feed pipe 5 is connected to the crusher, and the other port of the feed pipe 5 is connected to the Roots blower. Specifically, the external corrugated pipe 601 has an outer hole 608, and the internal corrugated pipe 602 has an inner hole 607. Specifically, the inner wall of the internal corrugated pipe 602 has a groove 606, and a moisture-absorbing sponge 605 is installed inside the groove 606. The groove 606 communicates with the inner hole 607.

[0023] It should be noted that, in the initial state, the outer hole 608 on the external bellows 601 is misaligned with the inner hole 607 on the internal bellows 602, and the inner hole 607 is in a blocked state.

[0024] During use, limestone is fed into the crusher by a conveyor belt and crushed. The crushed limestone powder enters the feed pipe 5. During this process, the Roots blower introduces compressed gas into the feed pipe 5, so that the limestone powder is directed to the discharge pipe 4 under the action of airflow. When limestone powder is introduced into feed pipe 5, it absorbs condensate from the pipe wall, causing it to clump together inside the pipe. Since the mass of the clump is greater than that of the limestone powder, it is conveyed along the bottom pipe wall towards the outlet under the action of compressed gas. When the clump passes through anti-clogging component 6, it sinks into the cavity in the bottom built-in corrugated pipe 602, and the powdered limestone flows through anti-clogging component 6 under the action of compressed gas.

[0025] Motor 801 drives sliding connecting ring 803 to move closer to fixed connecting ring 802 via lead screw 805. The cavity of built-in bellows 602 is compressed, clamping the adhesive block inside the cavity and preventing the adhesive block from being conveyed to discharge pipe 4, resulting in blockage of the discharge port.

[0026] During the process of the motor 801 driving the sliding connecting ring 803 to move closer to the fixed connecting ring 802, the output shaft of the motor 801 drives the gear 810 to rotate through the positive ratchet 808, and drives the external bellows 601 to rotate through the connection relationship between the gear 810 and the gear ring 604.

[0027] As the sliding connecting ring 803 moves closer to the fixed connecting ring 802, the adhesive block inside the cavity is squeezed, and its moisture is absorbed by the moisture-absorbing sponge 605, preventing the squeezed-out moisture from flowing back into the built-in bellows 602. When the built-in bellows 602 is compressed to its limit, that is, the two concave walls of the built-in bellows 602 are pressed together, and the outer hole 608 on the outer bellows 601 communicates with the inner hole 607 on the built-in bellows 602, the moisture squeezed out of the adhesive block and the moisture in the moisture-absorbing sponge 605 are discharged through the inner hole 607 and the outer hole 608 to the anti-blocking component 6. Because the two concave walls of the built-in bellows 602 are pressed together, the built-in bellows 602 can prevent compressed gas from being discharged through the inner hole 607 and the outer hole 608, preventing gas leakage from causing the conveying function to fail.

[0028] As the moisture in the adhesive block is drained, the adhesive block returns to a powdery or fine granular state. Since the limestone powder is located inside the concave cavity of the built-in corrugated pipe 602 after the restoration, the compressed gas has difficulty acting on it, causing the limestone powder to remain inside the concave cavity.

[0029] Based on this, the motor 801 drives the sliding connecting ring 803 to move away from the fixed connecting ring 802 via the lead screw 805. The external bellows 601 and the internal bellows 602 gradually return to their original shape. At the same time, the output shaft of the motor 801 drives the gear 811 to rotate via the reverse ratchet 809. The gear 811 meshes with the gear ring 603, causing the internal bellows 602 to rotate. This causes the limestone powder retained inside the cavity of the internal bellows 602 to rotate towards the top of the internal bellows 602. The limestone powder that has returned to its original shape inside the cavity of the internal bellows 602 falls downward from the top of the internal bellows 602 and is sent into the discharge pipe 4 by compressed gas for reuse.

[0030] It should be noted that the inner wall of the feed tube 5 is generally coated with an anti-stick layer to prevent adhesive residue from forming on the inner wall of the feed tube 5. See also... Figure 6 The cavity of the built-in bellows 602 is designed with a thicker top material and a thinner bottom material. The top material is used to seal the cavity when the built-in bellows 602 is compressed. The built-in bellows 602 and the external bellows 601 are made of silicone or rubber, and their non-corrugated sections are reinforced with steel wire.

[0031] See Figures 8-9 A forward ratchet 808 and a reverse ratchet 809 are mounted on the output shaft of the motor 801. A gear ring 603 and a gear ring 604 are respectively mounted on the external bellows 601 and the internal bellows 602. The forward ratchet 808 meshes with the gear ring 604 through the gear ring 810, and the reverse ratchet 809 meshes with the gear ring 603 through the gear ring 811.

[0032] Specifically, the forward ratchet 808 includes a ratchet 8081, a ratchet groove 8082 inside the ratchet 8081, a pawl 8083 mounted on the output shaft of the motor 801, a spring 8084 mounted on the pawl 8083, and the pawl 8083 cooperating with the ratchet groove 8082.

[0033] It should be noted that by rotating the motor 801 in both forward and reverse directions, the motor 801 drives the forward ratchet 808 and the reverse ratchet 809 to rotate via the ratchet pawl 8083. When the motor 801 drives the sliding connecting ring 803 to move closer to the fixed connecting ring 802, the output shaft of the motor 801 drives the second gear 810 to rotate via the forward ratchet 808. The connection between the second gear 810 and the second gear ring 604 drives the external bellows 601 to rotate. When the motor 801 drives the sliding connecting ring 803 away from the fixed connecting ring 802, the output shaft of the motor 801 drives the first gear 811 to rotate via the reverse ratchet 809. The engagement of the first gear 811 with the first gear ring 603 drives the internal bellows 602 to rotate.

[0034] See Figures 3-6A baffle 806 is installed on the slide groove 804. The baffle 806 is located at the top of the lead screw 805. A drain hole 807 is opened on the side wall of the slide groove 804. The water collected in the drain hole 807 is discharged through the baffle 806.

[0035] It should be noted that the baffle 806 is used to protect the transmission structure of the lead screw 805 and the sliding connecting ring 803. The water discharged through the inner hole 607 and the outer hole 608 is combined by the baffle 806 and finally discharged through the drain hole 807 on the side wall of the slide groove 804.

[0036] See Figures 1-2 The workbench 1 is connected to the feed pipe 5 via a fixed base 2, and the workbench 1 is connected to the discharge pipe 4 via a sliding assembly 3. The sliding assembly 3 includes a guide rail 301 mounted on the workbench 1 and a slide block 302 mounted at the bottom of the discharge pipe 4, with the slide block 302 slidingly engaged with the guide rail 301. It should be noted that as the transmission assembly 8 drives the sliding connecting ring 803 to reciprocate, the sliding connecting ring 803 drives the discharge pipe 4 to move synchronously, thereby avoiding concentrated discharge.

[0037] The implementation principle of this invention is as follows: The limestone material is fed into the crusher by the elevator belt and crushed. The crushed limestone powder enters the feed pipe 5. During this process, the Roots blower introduces compressed gas into the feed pipe 5, so that the limestone powder is directed to the discharge pipe 4 under the action of the airflow.

[0038] When limestone powder is introduced into the feed pipe 5, it absorbs condensate from the pipe wall, causing it to clump together inside the pipe. Since the mass of the clump is greater than that of the limestone powder particles, it is propelled along the bottom pipe wall towards the outlet by compressed gas. When the clump passes the anti-blocking component 6, it sinks into the cavity of the bottom-mounted corrugated pipe 602. Then, the motor 801 drives the sliding connecting ring 803 to move closer to the fixed connecting ring 802 via the lead screw 805. This compresses the cavity of the corrugated pipe 602, trapping the clump inside and preventing it from being conveyed towards the discharge pipe 4, thus causing a blockage at the outlet.

[0039] During the process of the motor 801 driving the sliding connecting ring 803 to move closer to the fixed connecting ring 802, the output shaft of the motor 801 drives the gear 810 to rotate through the positive ratchet 808, and drives the external bellows 601 to rotate through the connection relationship between the gear 810 and the gear ring 604.

[0040] As the sliding connecting ring 803 moves closer to the fixed connecting ring 802, the adhesive block inside the cavity is squeezed, and its moisture is absorbed by the moisture-absorbing sponge 605, preventing the squeezed-out moisture from flowing back into the built-in bellows 602. When the built-in bellows 602 is compressed to its limit, that is, the two concave walls of the built-in bellows 602 are pressed together, and the outer hole 608 on the outer bellows 601 communicates with the inner hole 607 on the built-in bellows 602, the moisture squeezed out of the adhesive block and the moisture in the moisture-absorbing sponge 605 are discharged through the inner hole 607 and the outer hole 608 to the anti-blocking component 6. Because the two concave walls of the built-in bellows 602 are pressed together, the built-in bellows 602 can prevent compressed gas from being discharged through the inner hole 607 and the outer hole 608, preventing gas leakage from causing the conveying function to fail.

[0041] It should be noted that as the moisture in the adhesive block is drained, the adhesive block returns to a powder or fine granular form. Since the limestone powder is located inside the concave cavity of the built-in corrugated pipe 602 after the return, the compressed gas has difficulty acting on it, causing the limestone powder to remain inside the concave cavity.

[0042] Based on this, the motor 801 drives the sliding connecting ring 803 to move away from the fixed connecting ring 802 via the lead screw 805. The external bellows 601 and the internal bellows 602 gradually return to their original shape. At the same time, the output shaft of the motor 801 drives the gear 811 to rotate via the reverse ratchet 809. The gear 811 meshes with the gear ring 603, causing the internal bellows 602 to rotate. This causes the limestone powder retained inside the cavity of the internal bellows 602 to rotate towards the top of the internal bellows 602. The limestone powder that has returned to its original shape inside the cavity of the internal bellows 602 falls downward from the top of the internal bellows 602 and is sent into the discharge pipe 4 by compressed gas for reuse.

Claims

1. A dust-proof limestone crushing and conveying device, characterized by comprising: a limestone crushing device; a limestone conveying device; a dust-proof device; and a limestone storage device. The utility model provides a kind of anti-blocking assembly and transmission assembly for powder feeding device, including workbench, the workbench is fixedly installed feed pipe, the workbench is slidably installed discharge pipe, and the discharge pipe and the feed pipe are installed anti-blocking assembly between, the workbench is installed transmission assembly; The transmission assembly includes motor, fixed connection ring and sliding connection ring, the feed pipe is connected with the anti-blocking assembly through the fixed connection ring, and the discharge pipe is connected with the anti-blocking assembly through the sliding connection ring;The workbench is installed sliding groove, and the sliding connection ring is slidably installed in the sliding groove;The output end of the motor is connected with lead screw, and the lead screw is drivingly connected with the sliding connection ring. The anti-blocking assembly includes built-in bellows and external bellows sleeved on the built-in bellows, and the two ends of the external bellows and the built-in bellows are rotatably installed in the fixed connection ring and the sliding connection ring respectively;When the motor drives the sliding connection ring to move close to the fixed connection ring through the lead screw, the motor drives the external bellows to rotate, and when the motor drives the sliding connection ring to move away from the fixed connection ring, the motor drives the built-in bellows to rotate.

2. The dust-proof limestone crushing and conveying apparatus according to claim 1, wherein An outer hole is formed in the external bellows, and an inner hole is formed in the built-in bellows.

3. The dust-proof limestone crushing and conveying apparatus according to claim 2, wherein A groove is formed in the inner wall of the built-in bellows, and a moisture-absorbing sponge is installed in the groove, and the groove is communicated with the inner hole.

4. The dust-proof limestone crushing and conveying apparatus according to claim 3, wherein A forward ratchet gear and a reverse ratchet gear are installed on the output shaft of the motor, a tooth ring one and a tooth ring two are respectively installed on the external bellows and the built-in bellows, the forward ratchet gear is engaged with the tooth ring two through gear two, and the reverse ratchet gear is engaged with the tooth ring one through gear one.

5. The dust-proof limestone crushing and conveying apparatus according to claim 4, wherein The forward ratchet gear includes a ratchet wheel, a ratchet groove is formed in the ratchet wheel, a pawl is installed on the output shaft of the motor, a spring is installed on the pawl, and the pawl is matched with the ratchet groove.

6. The dust-proof limestone crushing and conveying apparatus according to claim 1, wherein The top pipe opening of the feed pipe is connected with a pulverizer, and the other pipe opening of the feed pipe is connected with a Roots blower.

7. The dust-proof limestone crushing and conveying apparatus according to claim 1, wherein A baffle is installed on the sliding groove, the baffle is located at the top of the lead screw, a drain hole is formed in the side wall of the sliding groove, and the water collected in the drain hole is discharged through the baffle.

8. The dust-proof limestone crushing and conveying apparatus according to claim 1, wherein The workbench is connected with the feed pipe through a fixed seat, and the workbench is connected with the discharge pipe through a sliding assembly;The sliding assembly includes a guide rail installed on the workbench and a sliding seat installed at the bottom of the discharge pipe, and the sliding seat is slidably matched with the guide rail.

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