Automatic feeding device for ceramsite production

By designing an automatic feeding device with a frame and snap-fit ​​components, the auger can be easily disassembled, solving the problem of inconvenient maintenance of the conveying device and improving the stability and reliability of production.

CN223878826UActive Publication Date: 2026-02-06GUANGXI AOYU ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202520651996.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-02-06
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

In existing sludge-to-ceramsite production technology, sludge easily accumulates in the conveying auger, leading to inconvenient maintenance, affecting the continuity and stability of production, and lacking an effective cleaning and replacement mechanism.

Method used

An automatic feeding device was designed, including a frame, support legs, a conveying mechanism and a snap-fit ​​assembly. The device uses a motor to drive the auger to rotate and convey materials, and the auger can be easily disassembled through the snap-fit ​​assembly, enabling rapid maintenance and cleaning.

Benefits of technology

This enables convenient disassembly, assembly, cleaning, and maintenance of the auger, improving production stability and reliability, and ensuring the efficient operation of the feeding device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic feeding device for ceramsite production, which relates to the technical field of ceramsite production feeding and comprises a frame, supporting legs are fixedly mounted at four corners of the top of the frame, a frame body is fixedly mounted at the tops of the supporting legs, and a movable mechanism is arranged on the outer side of the top of the frame body. And a conveying mechanism is fixedly mounted on one side of the movable mechanism. By adopting the structure, when the device is used, firstly, the frame body is arranged at the top of equipment, sludge is added from the guide hopper and enters the feeding pipe through the feeding pipe and the material guide pipe, the first motor is started to drive the auger to rotate in the feeding pipe and push materials to the discharging pipe, so that automatic feeding is realized; the screw rod is driven to drive the arc-shaped frame to enable the sliding plate to slide in the sliding groove, then the connecting arm is pushed to move outwards, the auger can be rapidly pulled out of the feeding pipe, and follow-up cleaning and maintaining work is facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of ceramic grain production feeding, particularly relates to an automatic feeding device for ceramic grain production. BACKGROUND

[0002] At present, under the trend of environmental protection and resource comprehensive utilization, sludge production ceramic technology as a very potential sludge resource utilization way of sewage treatment is increasingly widely concerned, sludge production ceramic is to take the sludge produced in sewage treatment as the core raw material, after the pretreatment processes such as dewatering, drying, add clay, shale and other auxiliary materials to adjust the composition, make the special shape particle, high-temperature calcination, utilize the internal physical and chemical reaction of the particle to generate the ceramic with the characteristics of small density, high strength, heat preservation and heat insulation and good adsorption performance, and widely used in building, gardening, water treatment and other fields, which can not only effectively solve the sludge disposal problem, but also realize the recycling of resources, and has significant environmental and economic benefits.

[0003] However, the current technology still faces many challenges in actual production application, for example, the device for preparing ceramic by sludge pyrolysis biochar disclosed in the Chinese patent with the publication number CN210314035U, although the device uses a special feeding device, utilizes the stirring and additive adding of the spiral blade in the transmission process to realize the functions such as feeding mixing, but the conveying device has obvious disadvantages, it uses the auger to rotate inside the feeding pipe to assist the conveying of materials, however, after each sludge conveying is completed, a large amount of sludge is left in the auger, since the auger is inside the feeding pipe, it is extremely inconvenient to overhaul and clean, and long-term accumulation will not only cause the rusting and damage of the auger, and even cause the blockage of the feeding pipe in serious cases, which greatly affects the continuity and stability of production, and the existing technology generally lacks effective cleaning, overhaul and replacement mechanism for such situations, which greatly reduces the reliability and sustainability of the whole production process, and urgent innovation and improvement design is needed to break through the technical bottleneck and promote the wide application and efficient development of sludge production ceramic technology. CONTENT OF THE UTILITY MODEL

[0004] In view of the problems mentioned in the background art, the utility model aims to provide an automatic feeding device for ceramic production, to solve the problem of not easy cleaning and maintenance during the application of the prior art.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] The utility model provides an automatic feeding device for ceramsite production, including the frame, and the top four corner of frame all is fixedly installed with support leg, and the top of support leg is fixedly installed with frame body, and the outside of frame body's top is equipped with movable mechanism, and one side of movable mechanism is fixedly installed with conveying mechanism, and the inside of frame body is fixedly installed with feed pipe, and the inside of feed pipe is movably installed with conveying mechanism, and the top of feed pipe is equipped with guide pipe, and the bottom of guide pipe is connected with the inside of feed pipe, and the outside of conveying mechanism is connected with movable mechanism, and the bottom of feed pipe is fixedly installed with discharge pipe on the side away from guide pipe,

[0007] Conveying mechanism includes sealing cover, and the sealing cover covers one side of feed pipe, and the outside middle part of sealing cover is fixedly installed with first motor, and the output end of first motor is fixedly installed with auger through sealing cover, and the inside of feed pipe is rotatably connected with auger, and the top of sealing cover is fixedly installed with clamping assembly, and the bottom of sealing cover is installed with movable mechanism through clamping assembly.

[0008] As a preferred technical scheme, the movable mechanism includes a chute and a fixed arm, the chute is opened on both sides of the frame body, the fixed arm is fixedly installed on the upper end of the side of the feed pipe away from the sealing cover, the inside of the chute is slidably connected with a sliding plate, the top of the sliding plate is fixedly installed with an arc-shaped frame, the outside of the fixed arm is fixedly installed with a second motor, the output end of the second motor is fixedly installed with a lead screw through the fixed arm, the lead screw is threadedly connected with the arc-shaped frame, the outside middle part of the arc-shaped frame is fixedly installed with a connecting arm, and the outside of the connecting arm is connected with the clamping assembly.

[0009] As a preferred technical scheme, the clamping assembly includes an insertion block and a clamping frame, the clamping frame is fixedly connected to the outside upper end of the sealing cover, the insertion block is fixedly connected to the outer end of the connecting arm, the insertion block is inserted into the inside of the clamping frame, the outside middle part of the clamping frame is fixedly installed with a limiting group, and the end part of the limiting group is inserted into the inside of the clamping frame through the clamping frame.

[0010] As a preferred technical scheme, the outside of the clamping frame is fixedly installed with a concave seat, the inside of the concave seat is fixedly connected with a limiting spring, the end part of the limiting spring is fixedly connected with a movable plate, the movable plate is slidably connected to the inside of the concave seat, the side close to the insertion block of the movable plate is fixedly connected with a clamping block, the outside of the insertion block is provided with a clamping groove, and the end part of the clamping block is inserted into the inside of the clamping groove.

[0011] As a preferred technical scheme, the outside of the clamping block is fixedly installed with a connecting shaft, and the outer end of the connecting shaft is fixedly installed with an adjusting arm through the concave seat.

[0012] As a preferred technical scheme, the bottom of the adjusting arm is fixedly connected with a bridge handrail, and the bottom of the bridge handrail is fixedly connected with an anti-skid handrail cover.

[0013] As a preferred technical scheme, the top of the material guide pipe is fixedly connected with a guide hopper, the lower end of the guide hopper is conically arranged, and the inner cross section shape of the chute and the side surface shape of the sliding plate are also arranged as a convex letter shape.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] Firstly, during use, the frame body is installed on the top of equipment, sludge is added from the guide hopper, enters the feeding pipe through the feeding pipe and the material guide pipe, the first motor is started to drive the auger to rotate in the feeding pipe, push the material to the discharge pipe, realize automatic feeding, if the auger needs to be overhauled, the second motor is started to drive the lead screw, the lead screw drives the arc-shaped frame to make the sliding plate slide in the chute, and then pushes the connecting arm to move outward, so that the auger can be quickly pulled out of the feeding pipe, facilitating subsequent cleaning and maintenance work;

[0016] Secondly, the clamping mechanism is arranged, so that when the auger is pulled out, the pull bridge handrail is pulled, the adjusting arm is driven to move the connecting shaft outward, the limit spring is extruded, the movable plate pulls the clamping block away from the clamping groove, the plug is pulled out, the sealing cover, the first motor and the auger are removed for cleaning and maintenance, after maintenance, the plug is inserted into the clamping frame, the handrail is loosened, the limit spring is reset, the clamping block is clamped into the clamping groove, the sealing plate is quickly installed, and the auger is convenient to disassemble, clean and replace, so that the operation is convenient and worth promoting. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall structure schematic view of the utility model;

[0018] Figure 2 is the expanded state structure schematic view of the utility model;

[0019] Figure 3 is the bottom view structure schematic view of the utility model;

[0020] Figure 4 is the conveying mechanism structure schematic view of the utility model;

[0021] Figure 5 is the A place enlarged structure schematic view of the utility model Figure 4 .

[0022] Label: 1, frame; 2, support leg; 3, frame body; 4, feeding pipe; 5, moving mechanism; 51, chute; 52, fixed arm; 53, sliding plate; 54, arc-shaped frame; 55, second motor; 56, screw rod; 57, connecting arm; 6, conveying mechanism; 61, sealing cover; 62, first motor; 63, auger; 64, clamping assembly; 641, plug; 642, clamping frame; 643, limiting group; 6431, concave seat; 6432, limiting spring; 6433, movable plate; 6434, clamping block; 6435, connecting shaft; 6436, adjusting arm; 6437, bridge handrail; 6438, clamping groove; 7, discharge pipe; 8, guide hopper; 9, material guide pipe. DETAILED DESCRIPTION

[0023] EMBODIMENT

[0024] REFERENCE Figures 1 to 5 The automatic feeding device for ceramsite production of the embodiment comprises a frame 1, support legs 2 are fixedly installed at the top of four corners of the frame 1, a frame body 3 is fixedly installed at the top of the support legs 2, a moving mechanism 5 is arranged on the top outer side of the frame body 3, a conveying mechanism 6 is fixedly installed on one side of the moving mechanism 5, a feeding pipe 4 is fixedly installed in the frame body 3, the conveying mechanism 6 is movably installed in the feeding pipe 4, a material guide pipe 9 is arranged on the top of the feeding pipe 4, the bottom of the material guide pipe 9 is connected with the inside of the feeding pipe 4, the outer side of the conveying mechanism 6 is connected with the moving mechanism 5, and a discharge pipe 7 is fixedly installed on the side of the bottom of the feeding pipe 4 away from the material guide pipe 9.

[0025] The conveying mechanism 6 comprises a sealing cover 61, the sealing cover 61 covers one side of the feeding pipe 4, a first motor 62 is fixedly installed on the outer middle of the sealing cover 61, an auger 63 is fixedly installed on the output end of the first motor 62 and rotatably connected with the inside of the feeding pipe 4, a clamping assembly 64 is fixedly installed on the top of the sealing cover 61, and the sealing cover 61 is installed on the bottom of the moving mechanism 5 through the clamping assembly 64. When the automatic feeding device for ceramsite production works, the frame 1 stably supports the frame body 3 through the support legs 2, the material enters the feeding pipe 4 through the material guide pipe 9, the first motor 62 is started, the output end of the first motor 62 drives the auger 63 to rotate in the feeding pipe 4, so that the material is conveyed from the feeding pipe 4 to the discharge pipe 7, automatic feeding is realized, the moving mechanism 5 can drive the whole conveying mechanism 6 connected therewith to move integrally, the position is conveniently adjusted, the sealing cover 61 is installed on the bottom of the moving mechanism 5 through the clamping assembly 64, not only the sealing property of the feeding pipe 4 is ensured, but also the sealing cover 61 can be conveniently disassembled through the clamping assembly 64 when needed, so that the first motor 62, the auger 63 and other components in the inside are maintained and repaired, and the stable and efficient operation of the whole feeding device is ensured.

[0026] REFERENCE Figures 1-4The active mechanism 5 comprises a sliding groove 51 and a fixed arm 52, the sliding groove 51 is arranged on both sides of the frame 3, the fixed arm 52 is fixedly installed on the upper end of the feeding pipe 4 away from the sealing cover 61, the inside of the sliding groove 51 is slidably connected with a sliding plate 53, the top of the sliding plate 53 is fixedly installed with an arc-shaped frame 54, the outside of the fixed arm 52 is fixedly installed with a second motor 55, the output end of the second motor 55 is fixedly installed with a lead screw 56 penetrating through the fixed arm 52, the lead screw 56 is threadedly connected with the arc-shaped frame 54, the outside middle part of the arc-shaped frame 54 is fixedly installed with a connecting arm 57, the outside of the connecting arm 57 is connected with the clamping assembly 64, during use, when it is needed to adjust the position of the conveying mechanism 6 or to perform a specific operation, the second motor 55 is started, the second motor 55 operates, the output end of the second motor 55 drives the lead screw 56 to rotate, since the lead screw 56 is threadedly connected with the arc-shaped frame 54, during the rotation of the lead screw 56, the arc-shaped frame 54 moves along the axial direction of the lead screw 56, the arc-shaped frame 54 is installed on the top of the sliding plate 53, the sliding plate 53 slides in the sliding groove 51 arranged on both sides of the frame 3, which guarantees the stability and directionality of the movement of the arc-shaped frame 54, along with the movement of the arc-shaped frame 54, the connecting arm 57 fixedly installed on the outside middle part of the arc-shaped frame 54 also moves synchronously, the outside of the connecting arm 57 is connected with the clamping assembly 64, thereby driving the sealing cover 61 connected with the clamping assembly 64 and the conveying mechanism 6 inside to move horizontally on the frame 3, which facilitates the auger 63 to be pulled out for disassembly, maintenance and repair.

[0027] Reference Figures 1-5The clamping assembly 64 comprises an insertion block 641 and a clamping frame 642. The clamping frame 642 is fixedly connected to the outer upper end of the sealing cover 61. The insertion block 641 is fixedly connected to the outer end of the connecting arm 57. The insertion block 641 is inserted into the interior of the clamping frame 642. The outer middle part of the clamping frame 642 is fixedly installed with a limiting group 643. The end part of the limiting group 643 is inserted into the interior of the clamping frame 642 through the clamping frame 642. The outer side of the clamping frame 642 is fixedly installed with a concave seat 6431. The interior of the concave seat 6431 is fixedly connected with a limiting spring 6432. The end part of the limiting spring 6432 is fixedly connected with a movable plate 6433. The movable plate 6433 is slidingly connected to the interior of the concave seat 6431. The side of the movable plate 6433 close to the insertion block 641 is fixedly connected with a clamping block 6434. The outer side of the insertion block 641 is provided with a clamping groove 6438. The end part of the clamping block 6434 is inserted into the interior of the clamping groove 6438. When the clamping assembly 64 works, the insertion block 641 is fixed at the outer end of the connecting arm 57. The clamping frame 642 is fixed to the outer upper end of the sealing cover 61. The insertion block 641 is inserted into the interior of the clamping frame 642 to preliminarily position. When it is needed to fix the connection, the limiting spring 6432 in the concave seat 6431 is pushed to slide the movable plate 6433 in the concave seat 6431 and the clamping block 6434 on one side of the movable plate 6433 moves. The end part of the clamping block 6434 is accurately inserted into the clamping groove 6438 provided on the outer side of the insertion block 641. The stable clamping of the sealing cover 61 and the connecting arm 57 is realized. The connection of the conveying mechanism 6 and the movable mechanism 5 is firm. If it is needed to separate, the movable plate 6433 is extruded by external force to compress the limiting spring 6432. The clamping block 6434 is separated from the clamping groove 6438. At this time, the insertion block 641 can be pulled out from the clamping frame 642. The conveying mechanism 6 can be easily disassembled and maintained.

[0028] Reference Figure 5The outer side of the clamping block 6434 is fixedly provided with a connecting shaft 6435, the outer end of the connecting shaft 6435 is fixedly provided with an adjusting arm 6436 penetrating through the concave seat 6431, the bottom of the adjusting arm 6436 is fixedly connected with a bridge handrail 6437, the bottom of the bridge handrail 6437 is fixedly connected with an antiskid handrail sleeve, the top of the material guide pipe 9 is fixedly connected with a guide hopper 8, the lower end of the guide hopper 8 is conical, the inner cross section shape of the chute 51 and the side surface shape of the sliding plate 53 are also designed as convex, in the device, when the clamping assembly 64 needs to be operated, the operator holds the antiskid handrail sleeve on the bridge handrail 6437, moves the bridge handrail 6437 by applying force, drives the adjusting arm 6436 connected therewith to move, when the adjusting arm 6436 moves, the connecting shaft 6435 fixedly arranged on the outer side of the clamping block 6434 moves, the connecting shaft 6435 penetrates through the concave seat 6431, and further drives the movable plate 6433 to slide in the concave seat 6431, so that the clamping block 6434 is separated from or clamped with the clamping groove 6438 of the plug block 641, in the aspect of material conveying, the material enters from the top guide hopper 8, the lower end of the guide hopper 8 is conical, which is beneficial to the concentration and smooth entry of the material into the material guide pipe 9 below, and then into the feeding pipe 4, and the inner cross section of the chute 51 and the side surface of the sliding plate 53 are designed as convex, which can effectively prevent the sliding plate 53 from moving sideways or coming out of the chute 51, and ensure the stability and precision of the movement of the arc-shaped frame 54, the connecting arm 57 and the connected components, and guarantee the reliable operation of the whole device.

[0029] Principle and advantages: at the beginning of use, the frame body 3 can be stably installed on the top of the equipment, then the sludge is added into the feeding pipe through the guide hopper 8, the guide hopper 8 accurately guides the sludge to flow into the material guide pipe 9, and then the sludge is smoothly conveyed to the feeding pipe 4 through the material guide pipe 9, at this time, the first motor 62 is started, the motor operation drives the auger 63 to rotate at high speed in the feeding pipe 4, and the rotation of the auger 63 efficiently assists the driving of material conveying, so that the material stably reaches the discharge pipe 7 and is smoothly discharged through the discharge pipe 7, and the automatic transmission feeding function is perfectly realized.

[0030] Especially, when the auger 63 needs to be disassembled and maintained, only the second motor 55 is started, the second motor 55 is operated to drive the screw rod 56 to rotate, the screw rod 56 drives the arc-shaped frame 54 to move, and further drives the two sliding plates 53 to smoothly slide in the chute 51, the sliding plate 53 slides to drive the connecting arm 57 to move outward, and the acting force generated by the outward movement of the connecting arm 57 can quickly pull out the auger 63 in the feeding pipe 4, this unique design enables the device to conveniently pull out the auger 63 from the feeding pipe 4 during use, greatly facilitates the cleaning and maintenance of the auger 63, and significantly improves the maintenance efficiency and use reliability of the equipment.

[0031] The clamping mechanism provided by the device further enhances its convenience and efficiency during maintenance. During use, after the auger 63 is pulled out from the inside of the feed pipe 4, the operator can adjust the pull bridge handrail 6437 to drive the adjusting arm 6436 to move, and the adjusting arm 6436 pulls the connecting shaft 6435 to move outward. During the outward movement of the connecting shaft 6435, the movable plate 6433 is synchronously pulled to press the limiting spring 6432. At this time, the movable plate 6433 pulls the clamping block 6434, so that the clamping block 6434 is separated from the clamping groove 6438. When the clamping block 6434 and the clamping groove 6438 are successfully separated, the plug block 641 can be easily pulled out from the inside of the clamping frame 642, thereby realizing the removal of the entire sealing cover 61, the first motor 62 and the auger 63, and facilitating the thorough cleaning and maintenance of the inside of the auger 63 and the feed pipe 4.

[0032] After the cleaning and maintenance work is completed, when reinstalling, the plug block 641 is inserted into the internal slot of the clamping frame 642, and then the bridge handrail 6437 is loosened. At this time, the limiting spring 6432 quickly resets to drive the movable plate 6433 to push the clamping block 6434 to move, and the clamping block 6434 is accurately inserted into the inside of the clamping groove 6438. Through the mutual clamping and limiting of the clamping block 6434 and the clamping groove 6438, the installation of the sealing plate is quickly completed. The design of this clamping mechanism enables the device to more conveniently further disassemble, clean and replace the auger 63 after the auger 63 is pulled out. The overall operation process is simple and smooth, has high practical value, and is worthy of wide promotion and application in the relevant field.

Claims

1. An automatic feeding device for the production of ceramsite, comprising a frame (1), characterized in that: The top four corners of the frame (1) are fixedly installed with support legs (2), the top of the support leg (2) is fixedly installed with a frame body (3), the top outer side of the frame body (3) is provided with a movable mechanism (5), one side of the movable mechanism (5) is fixedly installed with a conveying mechanism (6), the inside of the frame body (3) is fixedly installed with a feeding pipe (4), the inside of the feeding pipe (4) is movably installed with a conveying mechanism (6), the top of the feeding pipe (4) is provided with a guide pipe (9), the bottom of the guide pipe (9) is connected with the inside of the feeding pipe (4), the outer side of the conveying mechanism (6) is connected with the movable mechanism (5), the bottom of the feeding pipe (4) is fixedly installed with a discharge pipe (7) away from the guide pipe (9). The conveying mechanism (6) comprises a sealing cover (61), the sealing cover (61) covers one side of the feeding pipe (4), the outer side of the sealing cover (61) is fixedly installed with a first motor (62) in the middle, the output end of the first motor (62) is fixedly installed with an auger (63) penetrating through the sealing cover (61), the auger (63) is rotatably connected to the inside of the feeding pipe (4), the top of the sealing cover (61) is fixedly installed with a clamping assembly (64), the sealing cover (61) is installed on the bottom of the movable mechanism (5) through the clamping assembly (64).

2. The automatic feeding device for producing ceramic granules according to claim 1, characterized in that: The movable mechanism (5) comprises a sliding groove (51) and a fixed arm (52), the sliding groove (51) is arranged on both sides of the frame body (3), the fixed arm (52) is fixedly installed on the upper end of the side of the feeding pipe (4) away from the sealing cover (61), the inside of the sliding groove (51) is slidably connected with a sliding plate (53), the top of the sliding plate (53) is fixedly installed with an arc-shaped frame (54), the outer side of the fixed arm (52) is fixedly installed with a second motor (55), the output end of the second motor (55) is fixedly installed with a lead screw (56) penetrating through the fixed arm (52), the lead screw (56) is threadedly connected with the arc-shaped frame (54), the outer side of the arc-shaped frame (54) is fixedly installed with a connecting arm (57), the outer side of the connecting arm (57) is connected with the clamping assembly (64).

3. The automatic feeding device for producing ceramic granules according to claim 2, characterized in that: The clamping assembly (64) comprises an insertion block (641) and a clamping frame (642), the clamping frame (642) is fixedly connected to the outer side of the upper end of the sealing cover (61), the insertion block (641) is fixedly connected to the outer end of the connecting arm (57), the insertion block (641) is inserted into the inside of the clamping frame (642), the outer side of the middle of the clamping frame (642) is fixedly installed with a limiting group (643), the end of the limiting group (643) is inserted into the inside of the clamping frame (642) penetrating through the clamping frame (642).

4. The automatic feeding device for producing ceramic granules according to claim 3, characterized in that: The outer side of the card frame (642) is fixedly installed with a concave seat (6431), the inner side of the concave seat (6431) is fixedly connected with a limiting spring (6432), the end of the limiting spring (6432) is fixedly connected with a movable plate (6433), the movable plate (6433) is slidingly connected in the inner side of the concave seat (6431), one side of the movable plate (6433) close to the plug block (641) is fixedly connected with a clamping block (6434), the outer side of the plug block (641) is provided with a clamping groove (6438), and the end of the clamping block (6434) is inserted into the inner side of the clamping groove (6438).

5. The automatic feeding device for producing ceramic granules according to claim 4, characterized in that: The outer side of the clamping block (6434) is fixedly installed with a connecting shaft (6435), and the outer end of the connecting shaft (6435) is fixedly installed with an adjusting arm (6436) penetrating through the concave seat (6431).

6. The automatic feeding device for producing ceramic granules according to claim 5, characterized in that: The bottom of the adjusting arm (6436) is fixedly connected with a bridge handrail (6437), and the bottom of the bridge handrail (6437) is fixedly connected with an anti-skid handrail cover.

7. The automatic feeding device for producing ceramic granules according to claim 2, characterized in that: The top of the material guide pipe (9) is fixedly connected with a guide hopper (8), the lower end of the guide hopper (8) is conical, and the inner cross-sectional shape of the chute (51) and the side shape of the sliding plate (53) are also designed as convex.

Citation Information

Patent Citations

  • Device for preparing ceramsite by pyrolyzing biochar through sludge

    CN210314035U