Iron removal device for circulating system of roller press

Abstract

The utility model discloses an iron removal device for a circulating system of a roller press, which comprises a box-type iron removal part arranged in a blanking scraper-trough conveyer between an elevator and a powder concentrator, and a powerful electromagnetic iron remover is arranged at the bottom of an inner cavity of the box-type iron removal part; a push plate is arranged on one side of the box-type iron removal part, the bottom of the push plate is flush with the top of the powerful electromagnetic iron remover, a push rod is arranged on one side, away from the iron removal part, of the push plate and driven by a cylinder, and the cylinder is electrically connected with a signal output end of a time relay; a cleaning opening is formed in the side portion, opposite to the push plate, of the box-type iron removal part, and a collecting box is arranged below the cleaning opening. The powerful electromagnetic iron remover in the box-type iron removal part adsorbs metal impurities generated in the running process of the circulating system of the roller press, then a time relay controls an air cylinder to run, a push rod is driven to push a push plate to push the metal impurities adsorbed on the powerful electromagnetic iron remover to a cleaning opening at regular time, and then the metal impurities fall into a collecting box below the cleaning opening. And the metal impurities in the collecting box only need to be cleaned regularly subsequently, and the device is intelligent, efficient, practical and convenient.

Description

Technical Field

[0001] The utility model relates to the field of cement production equipment, and particularly relates to an iron removing device for a roller press circulating system. Background Art

[0002] The cement production grinding system adopts a double-loop closed-circuit combined grinding system of a roller press and a mill. The roller surface of the roller press is a surfacing composite roller surface. Therefore, during the long-term operation of the roller press, some iron blocks and metal impurities generated by the falling of the roller surface will enter the materials in the roller press circulating system. Although a self-unloading iron remover is installed on the belt of the material conveying system at the bottom of the batching bin, when the belt conveys materials, the belt is in a U shape, resulting in the failure to completely remove the metal impurities buried in the materials. These impurities will enter the roller press system with the materials. Once the metal impurities enter the roller press circulating system, it is very difficult to discharge them, which will cause the roller press to vibrate frequently, accelerate the peeling phenomenon of the roller surface, reduce the roller pressing efficiency, and the repeated circulation of the metal impurities in the roller press circulating system will further exacerbate the wear of the roller surface of the roller press. Frequent maintenance of the damaged roller surface not only affects production but also generates more maintenance costs, which is not conducive to controlling production costs. Content of the Utility Model

[0003] The utility model provides an iron removing device for a roller press circulating system, aiming to solve the problem that metal impurities are mixed into the materials during the operation of the roller press circulating system, causing wear of the roller surface of the roller press and affecting production.

[0004] To achieve its purpose, the utility model adopts the following technical solutions:

[0005] An iron removing device for a roller press circulating system, the roller press circulating system includes a hoist, the discharge end of the hoist is communicated with the feed end of a classifier through a feeding chute, the discharge end of the classifier is communicated with the feed end of a load-bearing bin, the discharge end of the load-bearing bin is communicated with the feed end of the roller press, and an iron removing device is provided on the feeding chute. The iron removing device includes a box-type iron removing part arranged in the feeding chute, and a powerful electromagnetic iron remover is arranged at the bottom of the inner cavity of the box-type iron removing part; a push plate is arranged on one side of the box-type iron removing part, the bottom of the push plate is flush with the top of the powerful electromagnetic iron remover, a push rod is arranged on the side of the push plate away from the box-type iron removing part, the push rod is driven by a cylinder, and the cylinder is electrically connected to the signal output end of a time relay; a cleaning port is arranged on the side of the box-type iron removing part opposite to the push plate, and a collection box is arranged below the cleaning port.

[0006] Further, the width of the push plate is the same as the width of the inner cavity of the box-type iron removing part.

[0007] Further, the thickness of the push plate is 6-8 mm.

[0008] Further, there are two push rods, symmetrically arranged on one side of the push plate.

[0009] Furthermore, the magnetic force intensity of the powerful electromagnetic iron remover is 8000 - 10000 GS.

[0010] Furthermore, the width of the collection box is greater than or equal to the width of the box - type iron removal part.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The iron removal device provided by the present utility model is arranged at the blanking chute between the elevator and the powder separator. During the operation of the roller press circulation system, the metal impurities generated will be adsorbed by the powerful electromagnetic iron remover in the box - type iron removal part. Then, the time relay controls the operation of the air cylinder, driving the push rod to push the push plate to regularly push the metal impurities adsorbed on the powerful electromagnetic iron remover to the cleaning port, and fall into the collection box below the cleaning port. Subsequently, only the metal impurities in the collection box need to be regularly cleaned. Through this iron removal device, the metal impurities generated during the operation of the roller press circulation system can be effectively removed, solving the problem of roller surface damage caused by metal impurities, improving the roller pressing efficiency, being intelligent and convenient, and having strong practicability.

[0013] 2. For the iron removal device provided by the present utility model, the width of the push plate is the same as the width of the inner cavity of the box - type iron removal part, ensuring that the adsorbed metal impurities can be completely removed. Moreover, the width of the collection box is greater than or equal to the width of the box - type iron removal part, ensuring that the metal impurities can be completely collected and avoiding dropping, reducing the cleaning workload. At the same time, to avoid magnetization, the push plate is made of stainless steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the installation schematic diagram of the iron removal device for the roller press circulation system of the present utility model;

[0015] Figure 2 is the three - dimensional view of the iron removal device of the present utility model;

[0016] Figure 3 is the front view of the iron removal device of the present utility model;

[0017] Figure 4 is the top view of the iron removal device of the present utility model;

[0018] Figure 5 is the right view of the iron removal device of the present utility model;

[0019] Figure 6 is the rear view of the iron removal device of the present utility model;

[0020] In the figure: 1 - elevator; 2 - powder separator; 3 - load - bearing bin; 4 - roller press; 5 - iron removal device; 6 - blanking chute; 7 - box - type iron removal part; 8 - push plate; 9 - push rod; 10 - air cylinder; 11 - cleaning port; 12 - collection box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described below in conjunction with the accompanying drawings:

[0022] As Figure 1-6 shown, the present utility model is a iron removal device for a roller press circulating system. The roller press circulating system includes a hoist 1. The discharge end of the hoist 1 is communicated with the feed end of a separator 2 through a feed chute 6. The discharge end of the separator 2 is communicated with the feed end of a load-bearing bin 3. The discharge end of the load-bearing bin 3 is communicated with the feed end of a roller press 4. Among them, the hoist 1 is a ZYL1000×39390mm central chain bucket hoist with a conveying capacity of 500t / h for conveying the mixture; the separator 2 is a CDV2000 V-type separator with a feeding rate of 500t / h for separating the mixture; the load-bearing bin 3 is used for temporarily storing the mixture; the roller press 4 is a CDG140-80 roller press with a throughput of 410 t / h for extruding the mixture.

[0023] An opening is processed on the feed chute 6 so as to place the iron removal device 5 into the feed chute 6. The iron removal device 5 includes a box-type iron removal part 7 arranged in the feed chute 6. A high-strength electromagnetic iron with a magnetic strength of 10000GS is arranged at the bottom of the inner cavity of the box-type iron removal part 7; a push plate 8 with a thickness of 8mm is arranged on one side of the box-type iron removal part 7. The bottom of the push plate 8 is flush with the top of the high-strength electromagnetic iron, and the width of the push plate 8 is the same as the width of the inner cavity of the box-type iron removal part 7; two push rods 9 are symmetrically arranged on the side of the push plate 8 away from the box-type iron removal part 7. The push rods 9 are driven by a cylinder 10, and the cylinder 10 is electrically connected to the signal output end of a time relay; a cleaning port 11 is arranged on the side of the box-type iron removal part 7 opposite to the push plate 8. A collection box 11 is arranged below the cleaning port 11, and the width of the collection box 11 is equal to the width of the box-type iron removal part 7. To avoid magnetization, the push plate 8 is made of stainless steel.

[0024] During the continuous operation of the roller press circulating system, some iron blocks and metal impurities generated by the falling blocks on the roller surface will be mixed into the materials of the roller press circulating system and adsorbed by the high-strength electromagnetic iron in the box-type iron removal part 7 when passing through the feed chute 6. Then, when the time relay reaches the set time, it controls the operation of the cylinder 10, drives the push rod 9 to push the push plate 8 to regularly push the metal impurities adsorbed on the high-strength electromagnetic iron into the collection box 12 below the cleaning port 11. Subsequently, only the metal impurities in the collection box 12 need to be regularly cleaned. After the cleaning is completed, the cylinder 10 is depressurized and drives the push rod 9 to return for the next cleaning.

Claims

1. An iron removal device for a roller press circulation system, the roller press circulation system comprising an elevator (1), the discharge end of the elevator (1) being connected to the feed end of a powder selector (2) via a discharge chute (6), the discharge end of the powder selector (2) being connected to the feed end of a load-bearing bin (3), the discharge end of the load-bearing bin (3) being connected to the feed end of a roller press (4), characterized in that: The unloading chute (6) is provided with an iron removal device (5), which comprises a box-type iron removal part (7) arranged in the unloading chute (6), and a strong electromagnetic iron remover is arranged at the bottom of the inner cavity of the box-type iron removal part (7); a push plate (8) is arranged on one side of the box-type iron removal part (7), and the bottom of the push plate (8) is flush with the top of the strong electromagnetic iron remover, and a push rod (9) is arranged on the side of the push plate (8) away from the box-type iron removal part (7), and the push rod (9) is driven by a cylinder (10), and the cylinder (10) is electrically connected to the signal output end of the time relay; a cleaning port (11) is arranged on the side of the box-type iron removal part (7) opposite to the push plate (8), and a collection box (12) is arranged below the cleaning port (11).

2. The iron removal device for a roller press circulation system according to claim 1, characterized in that: The width of the push plate (8) is the same as the width of the inner cavity of the box-type iron removal part (7).

3. The iron removal device for a roller press circulation system according to claim 2, characterized in that: The push plate (8) has a thickness of 6-8 mm.

4. The iron removal device for a roller press circulation system according to claim 3, characterized in that: There are two push rods (9) which are symmetrically arranged on one side of the push plate (8).

5. The iron removal device for a roller press circulation system according to any one of claims 1 to 4, characterized in that: The magnetic strength of the powerful electromagnetic iron remover is 8000-10000GS.

6. The iron removal device for a roller press circulation system according to any one of claims 1 to 4, characterized in that: The width of the collecting box (12) is greater than or equal to the width of the box-type iron removal part (7).

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