Iron removal device of cellulose raw material crushing device

Abstract

An iron removal device of a cellulose raw material smashing device comprises a smashing device discharging port, and further comprises a connecting section pipeline and a transfer section pipeline, the downstream end of the transfer section pipeline is sealed, and a discharging port is formed in the top of the transfer section pipeline and connected with a negative pressure source through a pipeline. The upstream end of the transfer section pipeline is connected with a discharging port of the smashing device through a connecting section pipeline, a magnet block is arranged at the bottom of the transfer section pipeline, and a plurality of magnet rods are arranged in the connecting section pipeline in the width direction at intervals. The scrap iron removal device is simple in structure, low in improvement cost, capable of effectively intercepting scrap iron in discharged materials of the crushing device and reducing the risk that the scrap iron enters downstream procedures, and convenient to clean.

Description

Technical Field

[0001] This utility model relates to the chemical industry, and in particular to an iron removal device for a cellulose raw material crushing apparatus. Background Technology

[0002] In the process of synthesizing cellulose ethers from cellulose raw materials (such as cotton) by chemical enterprises, a pulverizing device is required to pulverize the cellulose.

[0003] After several years of operation, the cellulose raw material crushing unit consistently triggered alarms from its associated spark extinguishing system, indicating that safety risks were not effectively controlled. Analysis of the collected metal foreign objects revealed a low interception rate of metal foreign objects before raw material crushing.

[0004] Therefore, how to effectively reduce the amount of metal foreign matter entering downstream processes, thereby reducing the alarm frequency of the supporting spark extinguishing system and improving the synthesis quality of downstream processes, is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an iron removal device for a cellulose raw material crushing apparatus. This device has a simple structure, low modification cost, can effectively trap iron filings in the output of the crushing apparatus, reduce the risk of iron filings entering downstream processes, and is easy to clean.

[0006] The technical solution of this utility model is: an iron removal device for a cellulose raw material crushing apparatus, including a crushing apparatus outlet, a connecting section pipe, and a transfer section pipe. The downstream end of the transfer section pipe is sealed, and the top of the transfer section pipe is provided with an outlet and connected to a negative pressure source through a pipeline. The upstream end of the transfer section pipe is connected to the crushing apparatus outlet through the connecting section pipe. A magnet block is provided at the bottom of the transfer section pipe, and several magnet rods are spaced apart along the width direction in the connecting section pipe.

[0007] One end of the connecting section pipe is detachably connected to the discharge port of the crushing device via a flange, and the other end of the connecting section pipe is detachably connected to the upstream end of the transfer section pipe via a flange.

[0008] The cross-sections of the discharge port, connecting pipe, and transfer pipe of the crushing device are all rectangular.

[0009] The downstream end of the transfer section pipeline is equipped with a support, which extends downwards and supports the ground in the plant area.

[0010] The bottom plate of the connecting section pipe is a detachable bottom plate, and several magnetic rods are fixed on the bottom plate.

[0011] The above technical solution has the following beneficial effects:

[0012] 1. The iron removal device of the cellulose raw material crushing apparatus includes the discharge port of the crushing apparatus, a connecting section pipe, and a transfer section pipe. The crushed cellulose raw material, carrying iron filings and impurities, enters the transfer section pipe through the discharge port of the crushing apparatus and the connecting section pipe. The downstream end of the transfer section pipe is sealed, and the top of the transfer section pipe has a discharge port, which is connected to a negative pressure source through a pipeline. That is, the crushed cellulose raw material enters the transfer section pipe and is sucked out from the top discharge port under negative pressure. Due to the high specific gravity of iron filings, the amount of iron filings sucked out can be reduced. The upstream end of the transfer section pipe is connected to the discharge port of the crushing apparatus through the connecting section pipe, and finally connected to the outlet of the crushing apparatus. A magnet is installed at the bottom of the transfer section pipe. A small amount of iron filings and impurities carried by the crushed cellulose raw material entering the transfer section pipe through the discharge port of the crushing apparatus and the connecting section pipe are deposited at the bottom of the transfer section pipe and retained at the bottom of the transfer section pipe under the action of the magnet. The crushed cellulose raw material enters the downstream process through the discharge port under negative pressure. Several magnetic rods are spaced apart along the width of the connecting section pipe. As the crushed cellulose raw material passes through the gaps between these magnetic rods, the iron filings and impurities are initially adsorbed and removed by these magnetic rods. Combined with the magnetic blocks in the transfer section pipe and the discharge port located at the top of the transfer section pipe, the risk of iron filings and impurities entering the downstream process is greatly reduced.

[0013] 2. One end of the connecting section pipe is detachably connected to the discharge port of the crushing device via a flange, and the other end of the connecting section pipe is detachably connected to the upstream end of the transfer section pipe via a flange. This allows both the connecting section pipe and the transfer section pipe to be disassembled, facilitating the cleaning of adsorbed iron filings and impurities, and meeting the actual needs of enterprises.

[0014] 3. A support is installed at the downstream end of the transfer section pipeline. The support extends downward and rests on the ground in the plant area to support the transfer section pipeline and ensure its stability.

[0015] 4. The base plate of the connecting section pipe is a detachable base plate, and several magnetic rods are fixed on the base plate to facilitate the cleaning of iron filings and impurities adsorbed on the magnetic rods.

[0016] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description

[0017] Figure 1 This is a connection diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the connecting section pipe of this utility model.

[0019] In the attached diagram, 1 is the discharge port of the crushing device, 2 is the connecting section pipe, 3 is the transfer section pipe, 4 is the discharge port, 5 is the magnet block, 6 is the magnet rod, and 7 is the support. Detailed Implementation

[0020] See Figure 1 and Figure 2 This is a specific embodiment of an iron removal device for a cellulose raw material crushing apparatus. The iron removal device includes a crushing apparatus outlet 1, a connecting section pipe 2, and a transfer section pipe 3. In this embodiment, the cross-sections of the crushing apparatus outlet, the connecting section pipe, and the transfer section pipe are all rectangular, and obviously, the length of the connecting section pipe is shorter than the length of the transfer section pipe. The downstream end of the transfer section pipe 3 is sealed, and an outlet 4 is provided at the top of the transfer section pipe 3, which is connected to a negative pressure source via a pipeline. In this embodiment, the downstream end of the transfer section pipe is sealed by an iron plate, the bottom of which extends downwards and supports the plant floor, forming a bracket 7. The upstream end of the transfer section pipe 3 is connected to the crushing apparatus outlet 1 via the connecting section pipe 2. Specifically, one end of the connecting section pipe 2 is detachably connected to the crushing apparatus outlet 1 via a flange, and the other end of the connecting section pipe 2 is detachably connected to the upstream end of the transfer section pipe 3 via a flange. A magnet 5 is provided at the bottom of the transfer section pipe 3. Typically, the magnet is fixed to the bottom of the transfer section pipe using a detachable connection method, which facilitates the installation and removal of the magnet. A number of magnet rods 6 are provided at intervals along the width direction in the connecting section pipe 2. In this embodiment, the bottom plate of the connecting section pipe 2 is a detachable bottom plate, and the number of magnet rods 6 are fixed to the bottom plate.

Claims

1. An iron removal device for a cellulose raw material crushing apparatus, comprising a crushing apparatus outlet (1), characterized in that: It also includes a connecting section pipe (2) and a transfer section pipe (3). The downstream end of the transfer section pipe (3) is sealed. The top of the transfer section pipe (3) is provided with a discharge port (4) and is connected to a negative pressure source through a pipeline. The upstream end of the transfer section pipe (3) is connected to the discharge port (1) of the crushing device through the connecting section pipe (2). A magnet block (5) is provided at the bottom of the transfer section pipe (3). Several magnet rods (6) are spaced apart along the width direction in the connecting section pipe (2).

2. The iron removal device of the cellulose raw material crushing apparatus according to claim 1, characterized in that: One end of the connecting section pipe (2) is detachably connected to the discharge port (1) of the crushing device via a flange, and the other end of the connecting section pipe (2) is detachably connected to the upstream end of the transfer section pipe (3) via a flange.

3. The iron removal device of the cellulose raw material crushing apparatus according to claim 1, characterized in that: The cross-sections of the discharge port (1), connecting pipe (2), and transfer pipe (3) of the crushing device are all rectangular.

4. The iron removal device of the cellulose raw material crushing apparatus according to claim 1, characterized in that: A support (7) is installed at the downstream end of the transfer section pipeline (3), and the support (7) extends downward to support the ground in the plant area.

5. The iron removal device of the cellulose raw material crushing apparatus according to claim 1, characterized in that: The bottom plate of the connecting pipe (2) is a detachable bottom plate, and several magnetic rods (6) are fixed on the bottom plate.

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