A ceramic pre-screening feeding system

Abstract

The utility model discloses a kind of ceramsite pre-screening feeding systems, relate to ceramsite screening technical field.The utility model includes feeding belt, material distribution outlet frame and rolling screen assembly, and the front part of the inclined screen roller groove of rolling screen assembly is equipped with a group of fine pitch screen rollers, and the rear part is equipped with a group of coarse pitch screen rollers, and feeding belt sends ceramsite screen roller groove high end.The utility model transports mixed ceramsite to the high end of inclined screen roller groove by feeding belt, and ceramsite falls along groove under the action of gravity, first through the fine pitch screen roller of high-speed rotation, fine particle passes through screen roller gap and is separated through fine material discharge groove, remaining material continues to descend to coarse pitch screen roller area, medium particle passes through gap and is separated through medium material discharge groove, and finally coarse particle falls into coarse material collection groove from groove end, realize the efficient, automated multistage screening and classification of ceramsite in continuous feeding process.

Description

Technical Field

[0001] This utility model belongs to the field of ceramsite screening technology, and in particular relates to a ceramsite pre-screening and feeding system. Background Technology

[0002] In the field of expanded clay production and building materials applications, precise screening of expanded clay based on particle size is a crucial pretreatment step to ensure product quality. Traditional screening methods, often using single-layer vibrating screens or drum screens, have significant limitations. Single-layer screening is inefficient and makes it difficult to obtain multiple specifications of products at once, while multi-layer vibrating screens are complex in structure, prone to clogging, and require frequent maintenance. For damp or fragile expanded clay, the strong impact of the vibrating screen can easily cause secondary breakage of the particles. At the same time, traditional equipment suffers from poor coordination in the material collection and transfer stages after screening, often requiring multiple conveying devices, resulting in large system footprints and high energy consumption. Current technology lacks an integrated solution that can continuously, stably, and efficiently complete multi-stage screening and automatic sorting and feeding of expanded clay.

[0003] To address these issues, we provide a pre-screening and feeding system for ceramsite. Utility Model Content

[0004] The purpose of this utility model is to provide a pre-screening and feeding system for ceramsite. A material outlet frame is set at one end of the feeding belt, and a screen roller groove is set below the material outlet frame. A set of fine-pitch screen rollers is rotatably installed in the screen roller groove near the feeding belt, and a set of coarse-pitch screen rollers is rotatably installed in the screen roller groove away from the feeding belt. Ceramsite is placed at one end of the feeding belt, and the feeding belt conveys the ceramsite to the screen roller groove, causing the ceramsite to fall onto the fine-pitch screen rollers. Smaller diameter ceramsite falls between the fine-pitch screen rollers, while larger diameter ceramsite continues to be conveyed forward along the screen roller groove. When the ceramsite slides onto the coarse-pitch screen rollers, ceramsite with a diameter smaller than the distance between the coarse-pitch screen rollers falls. The remaining ceramsite continues to be conveyed forward and falls into the coarse material collection trough at one end of the screen roller groove, thus achieving multi-stage screening and feeding of the ceramsite.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a pre-screening and feeding system for ceramsite, comprising a feeding belt, a distribution outlet frame, and a rotary screen assembly. The upper end of the feeding belt is a horizontal section. The rotary screen assembly includes a screen roller groove, a set of fine-pitch screen rollers, and a set of coarse-pitch screen rollers. The screen roller groove is a U-shaped groove structure with an upward opening. One end of the screen roller groove is located below the end of the horizontal section of the feeding belt, and the end of the screen roller groove away from the feeding belt gradually slopes downward. A set of fine-pitch screen rollers is arranged in an array along the length of the screen roller groove at the end near the feeding belt, and a set of coarse-pitch screen rollers is arranged in an array along the length of the screen roller groove at the end away from the feeding belt. The two ends of the fine-pitch and coarse-pitch screen rollers are respectively rotatably mounted on the two side plates of the screen roller groove. The distribution outlet frame is located at the horizontal end of the feeding belt. The lower end face of the screen roller groove is fixedly connected to a fine material discharge chute at the end near the feeding belt, and the lower end face of the screen roller groove is fixedly connected to a medium material discharge chute at the end away from the feeding belt. A coarse material collection chute is provided at the end of the screen roller groove.

[0006] A further feature of this invention is that a limiting conveyor belt is provided above the horizontal section of the feeding belt, the length direction of the limiting conveyor belt is parallel to the length direction of the feeding belt, the conveying direction of the limiting conveyor belt is opposite to the conveying direction of the feeding belt, and the outer sleeve of the limiting conveyor belt is vertically slidably sleeved between the side plates on both sides of the horizontal section of the feeding belt.

[0007] A further feature of this invention is that material limiting brush strips are arranged vertically in an array along the length direction of the material limiting conveyor belt, and the length direction of the material limiting brush strips is parallel to the length direction of the material limiting conveyor belt.

[0008] A further feature of this invention is that a top cover is integrally formed and fixed on the upper end of the side plates on both sides of the horizontal section of the feeding belt, and a lead screw is rotatably installed on the upper end surface of the outer sleeve of the limiting conveyor belt. The lead screw is threaded through the top cover, and a screw head is integrally formed on the upper end of the lead screw.

[0009] A further feature of this invention is that a fine material conveyor belt is provided below the fine material discharge chute, the length direction of the fine material conveyor belt is perpendicular to the length direction of the feeding belt, one end of the fine material conveyor belt is provided below the fine material discharge chute, and a fine material storage tank is provided at the end of the fine material conveyor belt away from the fine material discharge chute.

[0010] A further feature of this invention is that the lower part of the material discharge trough has two discharge ports that extend to both sides of the screen roller trough. A material conveyor belt is provided on each side of the screen roller trough. The length direction of the material conveyor belt is parallel to the length direction of the feeding belt. The two discharge ports of the material discharge trough are respectively located above the material conveyor belts on both sides.

[0011] A further feature of this invention is that a medium material storage tank is provided below the conveying ends of the two medium material conveyor belts.

[0012] This utility model has the following beneficial effects: This invention utilizes a sieving assembly consisting of fine-pitch and coarse-pitch screen rollers, arranged at an incline along the screen roller grooves. By employing the weight of the ceramsite itself, material flow and multi-stage screening are achieved. Fine particles are preferentially separated by the fine-pitch screen rollers, medium-sized particles are subsequently separated by the coarse-pitch screen rollers, and the remaining coarse particles are collected at the end. This invention enables efficient and multi-stage screening of ceramsite during continuous feeding.

[0013] This invention integrates a feeding belt, a rotary screen assembly, a material distribution outlet frame, and corresponding fine, medium, and coarse material collection troughs to construct a continuous operation system from raw material feeding and automatic multi-stage screening to classified collection, which greatly improves the overall efficiency and automation of screening operations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a side sectional view of a pre-screening and feeding system for ceramsite.

[0016] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle.

[0017] Figure 3 This is a front sectional view of the present invention.

[0018] Figure 4 This is a top view of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1-Feeding belt, 101-Limiting conveyor belt, 101a-Limiting brush strip, 101b-Screw, 101b-1-Twisting head, 102-Top cover, 2-Distribution outlet frame, 3-Roller screen assembly, 301-Screw roller groove, 301a-Fine material discharge chute, 301a-1-Fine material conveyor belt, 301a-2-Fine material storage tank, 301b-Medium material discharge chute, 301b-1-Medium material conveyor belt, 301b-2-Medium material storage tank, 301c-Coarse material collection chute, 302-Fine-pitch screen roller, 303-Coarse-pitch screen roller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] Please see Figures 1 to 4 This utility model relates to a pre-screening and feeding system for ceramsite, comprising a feeding belt 1, a distribution outlet frame 2, and a rotary screen assembly 3. The upper end of the feeding belt 1 is a horizontal section. The rotary screen assembly 3 includes a screen roller groove 301, a set of fine-pitch screen rollers 302, and a set of coarse-pitch screen rollers 303. The screen roller groove 301 is a U-shaped groove structure with an upward opening. One end of the screen roller groove 301 is located below the end of the horizontal section of the feeding belt 1, and the end of the screen roller groove 301 away from the feeding belt 1 gradually slopes downward. A set of fine-pitch screen rollers 302 are arranged in an array along the length of the screen roller groove 301, close to the end of the feeding belt 1. A set of coarse-pitch screen rollers 303 are arranged in an array along the length of the screen roller groove 301, away from the end of the feeding belt 1. The two ends of the fine-pitch screen rollers 302 and the coarse-pitch screen rollers 303 are rotatably mounted on the two side plates of the screen roller groove 301, respectively. The frame 2 is located at the horizontal end of the feeding belt 1. The lower end of the screen roller trough 301 is fixedly connected to the fine material discharge trough 301a at the end near the feeding belt 1, and the lower end of the screen roller trough 301 is fixedly connected to the medium material discharge trough 301b at the end away from the feeding belt 1. The end of the screen roller trough 301 is provided with a coarse material collection trough 301c. The mixed ceramsite is conveyed to the high point of the inclined screen roller trough 301 by the feeding belt 1. Under the action of gravity, the ceramsite rolls down the trough. First, it passes through the high-speed rotating fine-pitch screen roller 302. The fine particles pass through the gap between the screen rollers and are separated by the fine material discharge trough 301a. The remaining material continues to flow down to the area of ​​the coarse-pitch screen roller 303. The medium-sized particles pass through the gap between the screen rollers and are separated by the medium material discharge trough 301b. Finally, the coarse particles fall from the end of the trough into the coarse material collection trough 301c. This realizes efficient and automated multi-stage screening and classification of ceramsite in the continuous feeding process.

[0022] Specifically, a limiting conveyor belt 101 is installed above the horizontal section of the feeding belt 1. The length direction of the limiting conveyor belt 101 is parallel to the length direction of the feeding belt 1, and the conveying direction of the limiting conveyor belt 101 is opposite to the conveying direction of the feeding belt 1. The outer sleeve of the limiting conveyor belt 101 is vertically slidably fitted between the side plates on both sides of the horizontal section of the feeding belt 1. This reverse-running limiting conveyor belt 101 can comb and thin the ceramsite layer on the surface of the feeding belt, making it evenly distributed and forming a suitable thickness. This avoids the material from accumulating too thickly on the belt, which would lead to uneven subsequent screening load or blockage, and ensures the stability of the feeding and the screening effect.

[0023] Furthermore, limiting brush strips 101a are arranged vertically in an array along the length direction of the limiting conveyor belt 101. The length direction of the limiting brush strips 101a is parallel to the length direction of the limiting conveyor belt 101. When the limiting brush strips 101a move in the opposite direction with the conveyor belt, they can gently break up any possible ceramsite agglomerates and perform secondary combing of the material layer. This further ensures that the ceramsite enters the screening area in a uniform and dispersed manner in a single layer or thin layer, effectively preventing clogging and improving screening accuracy.

[0024] Furthermore, a top cover 102 is integrally formed and fixed on the upper end of the side plates on both sides of the horizontal section of the feeding belt 1. A lead screw 101b is rotatably installed on the upper end surface of the outer sleeve of the limiting conveyor belt 101. The lead screw 101b is threaded through the top cover 102. A screw head 101b-1 is integrally formed on the upper end of the lead screw 101b. By rotating the screw head 101b-1, the lead screw 101b is driven to move up and down, thereby finely adjusting the distance between the limiting conveyor belt 101 and the surface of the feeding belt 1 to adapt to ceramsite raw materials of different particle sizes or flow rates, optimize the limiting effect, and enhance the process adaptability of the system.

[0025] Furthermore, a fine material conveyor belt 301a-1 is installed below the fine material discharge chute 301a. The length direction of the fine material conveyor belt 301a-1 is perpendicular to the length direction of the feeding belt 1. One end of the fine material conveyor belt 301a-1 is located below the fine material discharge chute 301a, and the end of the fine material conveyor belt 301a-1 away from the fine material discharge chute 301a is provided with a fine material storage tank 301a-2. The fine material conveyor belt 301a-1 can timely and continuously transfer the screened fine ceramsite particles laterally to the independent fine material storage tank 301a-2, realizing the automated connection and centralized storage of the fine material production line, and avoiding material accumulation and cross-contamination.

[0026] Furthermore, two discharge ports are provided below the intermediate material discharge chute 301b, and the two discharge ports extend to both sides of the screen roller trough 301. An intermediate material conveyor belt 301b-1 is provided on each side of the screen roller trough 301. The length direction of the intermediate material conveyor belt 301b-1 is parallel to the length direction of the feeding belt 1. The two discharge ports of the intermediate material discharge chute 301b are respectively located above the intermediate material conveyor belts 301b-1 on both sides. The dual-path discharge and conveying design can evenly distribute the screened medium-sized ceramsite particles onto the two parallel intermediate material conveyor belts 301b-1, effectively disperse the material flow, prevent overloading of a single conveyor belt, and optimize the site layout.

[0027] Furthermore, a medium material storage tank 301b-2 is installed below the conveying end of the two medium material conveyor belts 301b-1; the two medium material conveyor belts 301b-1 collect the material into the same medium material storage tank 301b-2, realizing the unified collection and storage of medium-sized ceramsite, simplifying the material management process, and facilitating subsequent batch processing or transfer.

[0028] The operation process of this embodiment is as follows: The system is started, and the feeding belt 1, the limiting conveyor belt 101, and each screen roller begin to run; the mixed ceramsite raw material is fed onto the feeding belt 1, and when it is conveyed to the end of the horizontal section, it is combed and spread by the limiting conveyor belt 101, which runs in the opposite direction and carries limiting brush strips 101a, forming a uniform thin layer before falling into the high end of the inclined screen roller groove 301; the ceramsite rolls down along the screen roller groove 301 under the action of gravity, first passing through a set of high-speed rotating fine-pitch screen rollers 302, where the fine particles fall through the gaps between the rollers, are collected by the fine material discharge trough 301a, and fall onto the fine material conveyor belt 301 below. On a-1, the material is laterally conveyed to the fine material storage tank 301a-2; larger particles that do not pass through continue to the area of ​​a set of coarse-pitch screen rollers 303, medium-sized particles fall through the gaps and are diverted to the medium material conveyor belts 301b-1 on both sides via the medium material discharge chute 301b, and are finally conveyed and collected in the medium material storage tank 301b-2; the remaining largest particles (coarse material) are discharged from the end of the screen roller chute 301 and fall directly into the coarse material collection chute 301c; the material limit height can be adjusted in real time by adjusting the screw 101b to adapt to different materials, thereby completing a fully automatic continuous operation from uniform feeding, three-stage screening to classified conveying and storage.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A pre-screening and feeding system for ceramsite, comprising a feeding belt (1), a distribution outlet frame (2), and a rotary screen assembly (3), characterized in that: The upper end of the feeding belt (1) is a horizontal section. The roller screen assembly (3) includes a screen roller groove (301), a set of fine-pitch screen rollers (302), and a set of coarse-pitch screen rollers (303). The screen roller groove (301) is a U-shaped groove structure with an upward opening. One end of the screen roller groove (301) is located below the end of the horizontal section of the feeding belt (1). The end of the screen roller groove (301) away from the feeding belt (1) gradually slopes downward. A set of fine-pitch screen rollers (302) is arranged in an array along the length direction of the screen roller groove (301) at one end of the screen roller groove (301) near the feeding belt (1). A set of coarse-pitch screen rollers (303) is arranged along the length direction of the screen roller groove (301). The length direction array is arranged in the screen roller groove (301) at one end away from the feeding belt (1). The two ends of the fine-pitch screen roller (302) and the coarse-pitch screen roller (303) are respectively rotatably installed on the two side plates of the screen roller groove (301). The material distribution outlet frame (2) is arranged at the horizontal end of the feeding belt (1). The lower end face of the screen roller groove (301) near the feeding belt (1) is fixedly connected to the fine material discharge trough (301a). The lower end face of the screen roller groove (301) away from the feeding belt (1) is fixedly connected to the medium material discharge trough (301b). The end of the screen roller groove (301) is provided with the coarse material collection trough (301c).

2. The pre-screening and feeding system for ceramsite according to claim 1, characterized in that: A limiting conveyor belt (101) is provided above the horizontal section of the feeding belt (1). The length direction of the limiting conveyor belt (101) is parallel to the length direction of the feeding belt (1). The conveying direction of the limiting conveyor belt (101) is opposite to the conveying direction of the feeding belt (1). The outer sleeve of the limiting conveyor belt (101) is vertically slidably sleeved between the two side plates of the horizontal section of the feeding belt (1).

3. The pre-screening and feeding system for ceramsite according to claim 2, characterized in that: Material limiting brush strips (101a) are arranged vertically in an array on the surface of the material limiting conveyor belt (101) along the length direction of the material limiting conveyor belt (101), and the length direction of the material limiting brush strips (101a) is parallel to the length direction of the material limiting conveyor belt (101).

4. The pre-screening and feeding system for ceramsite according to claim 3, characterized in that: A top cover (102) is integrally formed and fixed on the upper end of the side plates on both sides of the horizontal section of the feeding belt (1). A screw (101b) is rotatably installed on the upper end face of the outer sleeve of the limiting conveyor belt (101). The screw (101b) is threaded through the top cover (102). A screw head (101b-1) is integrally formed on the upper end of the screw (101b).

5. The pre-screening and feeding system for ceramsite according to claim 1, characterized in that: A fine material conveyor belt (301a-1) is provided below the fine material discharge chute (301a). The length direction of the fine material conveyor belt (301a-1) is perpendicular to the length direction of the feeding belt (1). One end of the fine material conveyor belt (301a-1) is located below the fine material discharge chute (301a). A fine material storage tank (301a-2) is provided at the end of the fine material conveyor belt (301a-1) away from the fine material discharge chute (301a).

6. The pre-screening and feeding system for ceramsite according to claim 5, characterized in that: The material discharge trough (301b) has two discharge ports at its bottom, and the two discharge ports extend to both sides of the screen roller trough (301). A material conveyor belt (301b-1) is provided on each side of the screen roller trough (301). The length direction of the material conveyor belt (301b-1) is parallel to the length direction of the feed belt (1). The two discharge ports of the material discharge trough (301b) are respectively located above the material conveyor belts (301b-1) on both sides.

7. The ceramsite pre-screening and feeding system according to claim 6, characterized in that: A medium material storage tank (301b-2) is provided below the conveying end of the two medium material conveyor belts (301b-1).

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