Modular rubber anti-blocking screen

Abstract

The utility model discloses a modularized rubber anti-blocking screen which comprises a head blind plate, side screen bodies, a middle screen body and a supporting frame, supporting angle steel is fixedly connected between the side screen bodies and the middle screen body, the side screen bodies are divided into two sets, the two sets of side screen bodies are symmetrically arranged, and the problem that screen holes are blocked by water-containing fine materials can be effectively solved. The minimum service life of the high-elasticity rubber screen is 6-8 months, so that the service life is prolonged, energy is saved, consumption is reduced, the production cost is reduced, a modular splicing mode is adopted for installation, disassembly is convenient, maintenance is convenient and fast, the screening efficiency is high and can reach 80% or above, the screening circulation load is effectively reduced, the average particle size of the screen entering a mill is reduced, and the service life of the screen is prolonged. The processing capacity of the mill is improved.

Description

Technical field:

[0001] The utility model relates to the field of lead-zinc ore dressing, and in particular to a modular rubber anti-blocking screen. Background technology:

[0002] Lead-zinc ore is a mineral rich in the metallic elements lead and zinc, and has a wide range of uses.

[0003] Circular vibrating screen is a circular vibrating screen. Because its motion trajectory is similar to a circle, it is referred to as a circular vibrating screen. It is a multi-layer, high-efficiency new type of vibrating screen. The circular vibrating screen uses a cylindrical eccentric shaft vibrator and an eccentric block to adjust the amplitude. The material screen has a long flow line and a variety of screening specifications. It has the characteristics of reliable structure, strong excitation force, high screening efficiency, low vibration noise, durability, easy maintenance, and safe use.

[0004] In the process of lead-zinc ore dressing, after the material is crushed, it enters the next process after being screened by the circular vibrating screen. The lower screen of the circular vibrating screen is mostly made of manganese steel with a screen hole size of 15mm*20mm. The average service life of the screen is 45 days and the screening efficiency is 65%.

[0005] Manganese steel screens have a short service life and low screening efficiency. In addition, the screens are frequently blocked during the rainy season (when the moisture content of the ore is high) and during the snow and thaw period, resulting in insufficient ore supply and seriously restricting normal production. Utility model content:

[0006] The utility model aims to provide a modular rubber anti-blocking screen.

[0007] The utility model is implemented by the following technical solutions:

[0008] A modular rubber anti-blocking screen comprises a head blind plate, a side screen, an intermediate screen and a support frame, wherein a supporting angle steel is fixedly connected between the side screen and the intermediate screen, the side screen is divided into two groups, the two groups of side screens are symmetrically arranged, a plurality of intermediate screens are fixedly installed between the two groups of side screens, the head blind plate is fixedly installed on a common side of the two groups of side screens and the plurality of intermediate screens, and each group of side screens is fixedly installed on the corresponding side wall of the support frame.

[0009] Preferably, a welding frame is fixedly installed on the side wall of the support frame, a plurality of positioning holes are fixedly provided on the welding frame, one end of the edge screen is provided on the top of the welding frame, a side pressure plate is fitted on the side wall of the support frame, the bottom end of the side pressure plate is fitted with the top of the edge screen, a fastening clamp is provided above the side pressure plate, the fastening clamp is fixed to the side wall of the support frame by bolts, a wedge is embedded in the fastening clamp, and the bottom end of the wedge is tightly fitted with the top of the side pressure plate.

[0010] Preferably, a plurality of extrusion plates are fixedly connected to the side wall of the side pressure plate, each of which is arranged on the top of the corresponding edge screen, the side wall of the extrusion plate is inclined, and a plurality of positioning rods are fixedly connected to the bottom end of the extrusion plate.

[0011] The advantages of the utility model are as follows: it can effectively solve the problem of water-containing fine materials clogging the sieve holes, and the minimum service life of the high-elastic rubber screen is 6-8 months, which prolongs the service life, saves energy and reduces consumption, and reduces production costs. It is installed in a modular splicing manner, which is convenient for disassembly and maintenance. The screening efficiency is high and can reach more than 80%, which effectively reduces the screening cycle load. The sieve hole is small (12mm*20mm), which reduces the average particle size entering the mill and increases the mill processing capacity. Description of the drawings:

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the connection between the side screen and the middle screen of the utility model;

[0014] Figure 3 It is a schematic diagram of the connection between the side screen and the support frame in the utility model.

[0015] In the figure: head blind plate 1, side screen 2, middle screen 3, support frame 4, support angle steel 5, welding frame 6, positioning rod 7, side pressure plate 8, wedge block 9, fastening clamp 10, extrusion plate 11. Specific implementation method:

[0016] like Figures 1 to 3As shown, a modular rubber anti-blocking screen comprises a head blind plate 1, a side screen 2, an intermediate screen 3 and a support frame 4, a supporting angle steel 5 is fixedly connected between the side screen 2 and the intermediate screen 3, the side screen 2 is divided into two groups, the two groups of side screens 2 are symmetrically arranged, a number of intermediate screens 3 are fixedly installed between the two groups of side screens 2, the head blind plate 1 is fixedly installed on a common side of the two groups of side screens 2 and a number of intermediate screens 3, each group of side screens 2 is fixedly installed on the corresponding side wall of the support frame 4, the original manganese steel woven screen is replaced with a high-elastic rubber screen, and is spliced ​​by a number of intermediate screens 3 and two groups of side screens 2, and two adjacent The middle screen 3, the two adjacent side screens 2, and the adjacent side screens 2 and the middle screen 3 are all supported and fixed by the supporting angle steel 5. In this way, the property of the material itself can effectively solve the problem of water-containing fine materials blocking the screen holes, and the minimum service life of the high-elastic rubber screen is 6-8 months, which prolongs the service life, saves energy and reduces consumption, reduces production costs, and adopts modular splicing for installation, which is convenient for disassembly, convenient and fast for maintenance, and has a high screening efficiency of more than 80%, which effectively reduces the screening cycle load. The screen hole is small (12mm*20mm), which reduces the average particle size entering the mill and increases the processing capacity of the mill.

[0017] A welding frame 6 is fixedly installed on the side wall of the support frame 4, and a plurality of positioning holes are fixedly provided on the welding frame 6. One end of the edge screen 2 is arranged at the top of the welding frame 6. A side pressure plate 8 is fitted on the side wall of the support frame 4, and the bottom end of the side pressure plate 8 is fitted with the top end of the edge screen 2. A fastening clamp 10 is arranged above the side pressure plate 8, and the fastening clamp 10 is fixed to the side wall of the support frame 4 by bolts. A wedge 9 is embedded in the fastening clamp 10, and the bottom end of the wedge 9 is tightly fitted with the top end of the side pressure plate 8. During installation, one end of the edge screen 2 is placed on the welding frame 6, and then the side pressure plate 8 is placed on the top end of the edge screen 2, and then the wedge is placed in the fastening clamp 10, and after locking it with bolts, the edge screen 2 is fixed. The operation is simple and convenient, and the disassembly is easy, and it is convenient to replace and repair.

[0018] A plurality of extrusion plates 11 are fixedly connected to the side wall of the side pressure plate 8, each of which is arranged on the top of the corresponding side screen 2, and the side wall of the extrusion plate 11 is inclined. A plurality of positioning rods 7 are fixedly connected to the bottom end of the extrusion plate 11, and the positioning rods 7 are inserted into the corresponding positioning holes, and the side screen 2 is further extruded and fixed by the extrusion plate 11. The inclined surface can prevent material residue.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A modular rubber anti-blocking screen, characterized by: It includes a head blind plate, a side screen, an intermediate screen and a support frame, wherein a supporting angle steel is fixedly connected between the side screen and the intermediate screen, the side screen is divided into two groups, the two groups of side screens are symmetrically arranged, a number of intermediate screens are fixedly installed between the two groups of side screens, the head blind plate is fixedly installed on a common side of the two groups of side screens and the several intermediate screens, and each group of side screens is fixedly installed on the corresponding side wall of the support frame.

2. A modular rubber anti-blocking screen according to claim 1, characterized in that: A welding frame is fixedly installed on the side wall of the support frame, a plurality of positioning holes are fixedly set on the welding frame, one end of the edge screen is set on the top of the welding frame, a side pressure plate is fitted on the side wall of the support frame, the bottom end of the side pressure plate is fitted with the top of the edge screen, a fastening clamp is set above the side pressure plate, the fastening clamp is fixed to the side wall of the support frame by bolts, a wedge is embedded in the fastening clamp, and the bottom end of the wedge is tightly fitted with the top of the side pressure plate.

3. A modular rubber anti-blocking screen according to claim 2, characterized in that: A plurality of extrusion plates are fixedly connected to the side wall of the side pressure plate, each of which is arranged on the top of the corresponding edge screen, the side wall of the extrusion plate is inclined, and a plurality of positioning rods are fixedly connected to the bottom end of the extrusion plate.

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