Simple iron removal device for coal slurry

Abstract

The utility model relates to the technical field of coal slurry treatment, in particular to a simple iron removal device for coal slurry, which is characterized in that an iron removal rod is arranged in an iron removal barrel along the axial direction of the iron removal barrel, and a coal slurry inlet pipe and a coal slurry outlet pipe are arranged on the iron removal barrel on two sides of the iron removal rod, so that iron impurities flowing through the coal slurry are adsorbed by the iron removal rod; and finally, the iron impurities on the iron removal rod are washed through the liquid inlet cleaning pipe, the cleaned iron impurities are discharged through the liquid outlet deslagging hollow pipe, the liquid outlet deslagging pipe is located below the coal slurry inlet pipe, the iron impurities can be prevented from being gathered in the coal slurry outlet pipe, and therefore it is guaranteed that the iron impurities are fully cleaned, the overall structure is simple, cost is low, operation is convenient, and practicability is high. And meanwhile, iron impurities in the coal slurry can be removed, and the actual production requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of coal slurry treatment, in particular to a simple iron removal device for coal slurry. Background Art

[0002] During the preparation process of water gas, water-coal slurry needs to react with the gases involved in the reaction in a gasifier to prepare it. The water-coal slurry is made by grinding raw coal through a pulverizer.

[0003] During the operation of the coal mill, the iron-containing substances contained in the raw coal will be ground into fine particles. At the same time, due to the loss of the steel balls inside the coal mill during the grinding process, iron chips are generated. These iron-containing impurities have a small particle size and cannot be effectively filtered. Therefore, the iron-containing impurities are mixed with the produced water-coal slurry and enter the mill discharge trough and the mill discharge trough pump, causing serious wear on the impeller and other internal components of the mill discharge trough pump. At the same time, it will also be blocked at the outlet pipe of the mill discharge trough pump, seriously affecting the stable supply of water-coal slurry, and thus affecting the production of water gas.

[0004] In order to reduce the impact of iron impurities in coal slurry, an iron removal device is usually installed at the outlet of the pulverizer. For example, the Chinese utility model patent with application number 202223469170.3 provides a water-coal slurry preparation system, which removes iron impurities in the water-coal slurry through a permanent magnetic barrel magnetic separator. The use of this device is expensive and difficult to maintain, which increases the cost of promotion and use and cannot meet actual use needs. Utility Model Content

[0005] The purpose of the utility model is to provide a simple coal slurry iron removal device to solve the technical problem of high cost of current coal slurry iron removal devices.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A simple iron removal device for coal slurry comprises an iron removal bucket and an iron removal rod arranged on the iron removal bucket; the iron removal rod is arranged in the same direction as the axis of the iron removal bucket, and the iron removal rod is detachably connected to the iron removal bucket; the iron removal bucket is connected to a coal slurry inlet pipe, a coal slurry outlet pipe, a liquid inlet cleaning pipe, and a liquid outlet slag discharge pipe;

[0008] The coal slurry inlet pipe and the coal slurry outlet pipe are arranged on opposite sides of the iron removal barrel, and the iron removal rod is located between the coal slurry inlet pipe and the coal slurry outlet pipe; the liquid inlet cleaning pipe is located above the liquid outlet slag discharge pipe, and the liquid outlet slag discharge pipe is located below the coal slurry inlet pipe.

[0009] It is further defined that a coal slurry sampling tube is also provided on the iron removal barrel, a coal slurry sampling switch valve is provided on the coal slurry sampling tube, and the coal slurry sampling tube is located between the coal slurry inlet pipe and the coal slurry outlet pipe.

[0010] It is further defined that the number of the iron removal rods is multiple, and the multiple iron removal rod arrays are arranged on the iron removal bucket.

[0011] It is further defined that the number of the iron removal rods is nine, five of the iron removal rods are arranged at equal intervals along the axis of the coal slurry sampling tube, four of the iron removal rods are close to the coal slurry inlet pipe, four of the iron removal rods are arranged at equal intervals along the axis of the coal slurry sampling tube, and three of the iron removal rods are close to the coal slurry outlet pipe.

[0012] It is further defined that the outer side of the iron removal rod is provided with an iron removal sleeve, the iron removal rod and the iron removal sleeve are detachably connected, and the iron removal sleeve is fixedly connected to the iron removal bucket.

[0013] It is further defined that the number of the liquid inlet cleaning pipes is two, the two liquid inlet cleaning pipes are arranged on opposite sides of the iron removal barrel, the two liquid inlet cleaning pipes are opposite to the upper end of the iron removal rod, and the iron removal rod is located between the two liquid inlet cleaning pipes.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model arranges an iron removal rod along the axial direction in the iron removal barrel, and then arranges a coal slurry inlet pipe and a coal slurry outlet pipe on the iron removal barrel on both sides of the iron removal rod, so that the iron impurities in the coal slurry are adsorbed by the iron removal rod, and finally the iron impurities on the iron removal rod are washed through the liquid inlet cleaning pipe, and the cleaned iron impurities are discharged through the liquid outlet slag empty pipe. The liquid outlet slag discharge pipe is located below the coal slurry inlet pipe to avoid the iron impurities from accumulating in the coal slurry outlet pipe, thereby ensuring that the iron impurities are fully cleaned. The overall structure is simple, the cost is low, and the operation is convenient. At the same time, the iron impurities in the coal slurry can be removed to meet the actual production needs.

[0016] 2. By adding a coal slurry sampling tube to the iron removal barrel, the utility model can sample the water-coal slurry at any time during the actual production process to determine whether the iron removal effect of the water-coal slurry meets the requirements. At the same time, the water-coal slurry can also be sampled through the coal slurry sampling tube according to the detection requirements, thereby meeting the sampling and detection requirements of the water-coal slurry and further improving the actual production needs.

[0017] 3. The iron removal rod of the utility model is detachably connected to the iron removal barrel through the iron removal sleeve. On the one hand, it is convenient to replace the iron removal rod, and at the same time it can also prevent the iron removal rod from being eroded by the water-coal slurry, thereby increasing its service life. On the other hand, after the iron removal rod is pulled out, the iron removal sleeve which does not have magnetic properties is flushed, which can improve the flushing efficiency and cleaning quality, reduce downtime, improve work efficiency, and meet actual production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the front view of the simple coal slurry iron removal device of the utility model;

[0019] Figure 2 This is a top view of the simple coal slurry iron removal device of the utility model;

[0020] In the figure: 1- iron removal bucket; 2- iron removal rod; 3- coal slurry inlet pipe; 4- coal slurry outlet pipe; 5- liquid inlet cleaning pipe; 6- liquid outlet slag discharge pipe; 7- coal slurry sampling pipe; 8- iron removal sleeve; 9- cleaning cover; a- coal slurry sampling switch valve; b- connecting flange. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the present invention. The described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection disclosed by the present invention.

[0022] The specific implementation of the present utility model will be described in detail below with reference to the accompanying drawings.

[0023] refer to Figure 1 and Figure 2 This embodiment provides a simple iron removal device for coal slurry, including an iron removal bucket 1 and an iron removal rod 2. The iron removal bucket 1 can be a cubic structure or a prismatic structure. In order to avoid impurities remaining at the corners of the inner wall, the iron removal bucket 1 is preferably a cylindrical structure.

[0024] The iron removal bucket 1 is set vertically, and the iron removal rod 2 is selected to be set vertically in the iron removal bucket 1 so that the axis of the iron removal bucket 1 is parallel to the axis of the iron removal rod 2, which facilitates the connection between the iron removal rod 2 and the iron removal bucket 1.

[0025] The bottom of the iron removal rod 2 passes through the top of the iron removal bucket 1 and extends to the interior of the iron removal bucket 1. The top of the iron removal rod 2 is located above the iron removal bucket 1, which is convenient for placing the iron removal rod 2 in the iron removal bucket 1 and also convenient for taking the iron removal rod 2 out of the iron removal bucket 1. At this time, it is preferred that the iron removal rod 2 is disassembled and connected to the iron removal bucket 1 to facilitate replacement of the iron removal rod 2.

[0026] A coal slurry inlet pipe 3 and a coal slurry outlet pipe 4 are connected to the iron removal barrel 1. One end of the coal slurry inlet pipe 3 is connected to the outlet of the coal mill. A coal slurry switch valve is provided at the outlet of the coal mill to control the supply of water-coal slurry. The other end of the coal slurry inlet pipe 3 is communicated with the interior of the iron removal barrel 1. One end of the coal slurry outlet pipe 4 is communicated with the interior of the iron removal barrel 1. The other end of the coal slurry outlet pipe 4 is connected to the coal slurry discharge trough. The iron removal rod 2 is arranged between the coal slurry inlet pipe 3 and the coal slurry outlet pipe 4.

[0027] During actual use, the coal mill injects the prepared water-coal slurry into the deironing barrel 1 through the coal slurry inlet pipe 3. Then, after the water-coal slurry passes through the deironing rod 2 in the deironing barrel 1, the iron impurities in the water-coal slurry are adsorbed on the deironing rod 2. The water-coal slurry after deironing is input into the coal slurry discharge trough through the coal slurry outlet pipe 4, thereby realizing the deironing of the water-coal slurry, ensuring the stable and reliable operation of the system and improving its service life.

[0028] To further illustrate, in order to clean the iron impurities adsorbed on the iron removal rod 2, you can choose to directly take out the iron removal rod 2 for replacement, or you can choose to connect the liquid inlet cleaning pipe 5 and the liquid outlet slag discharge pipe 6 to the iron removal barrel 1.

[0029] One end of the liquid inlet cleaning pipe 5 is connected to the cleaning liquid, and the other end of the liquid inlet cleaning pipe 5 is connected to the interior of the iron removal barrel 1. The end of the liquid inlet cleaning pipe 5 is preferably located at the upper end of the iron removal barrel 1, so that the cleaning liquid can start cleaning from the top of the iron removal rod 2, thereby improving the removal of iron impurities on the iron removal rod 2.

[0030] One end of the liquid inlet cleaning pipe 5 is provided with a connecting flange b, which is convenient for receiving the cleaning liquid through the pipeline and is also convenient for disassembly.

[0031] One end of the liquid outlet and slag discharge pipe 6 is connected to the interior of the iron removal barrel 1, and the other end of the liquid outlet and slag discharge pipe 6 is connected to the impurity collection device. The end of the liquid outlet and slag discharge pipe 6 is located at the lower end of the iron removal barrel 1, and the coal slurry outlet pipe 4 is located above the liquid outlet and slag discharge pipe 6, which is convenient for discharging the flushed iron impurities through the liquid outlet and slag discharge pipe 6; at the same time, a switch valve is provided on the coal slurry outlet pipe 4, which is used to close the coal slurry outlet pipe 4 when cleaning the iron removal rod 2, so as to prevent iron impurities from entering the coal slurry discharge trough and the coal slurry discharge trough pump.

[0032] A cleaning cover 9 is provided at the other end of the liquid discharge and slag discharge pipe 6. The cleaning cover 9 can also be connected to the corresponding end of the liquid discharge and slag discharge pipe 6 through a flange, so that when the water-coal slurry is subjected to iron removal, the liquid discharge and slag discharge pipe 6 remains closed; when the iron removal rod 2 is cleaned, the cleaning cover 9 can be opened, so that the flushed iron impurities are accumulated at the bottom of the iron removal barrel 1 and discharged through the liquid discharge and slag discharge pipe 6, thereby improving the cleaning effect.

[0033] Preferably, the iron removal rod 2 can be an electromagnet, which is electrified for excitation control. When the iron removal rod 2 is cleaned, the iron removal rod 2 is closed to make it non-magnetic.

[0034] Preferably, the number of liquid inlet cleaning pipes 5 can be selected as two, and the two liquid inlet cleaning pipes 5 can be optionally arranged on opposite sides of the iron removal barrel 1, so as to facilitate the connection of cleaning liquid in different directions, making the connection more convenient; and when cleaning the iron removal rod 2, it is possible to choose to connect any one or two liquid inlet cleaning pipes 5, and the cleaning efficiency of the two liquid inlet cleaning pipes 5 is higher.

[0035] Further explanation, in order to judge the iron removal effect of the water-coal slurry and sample the water-coal slurry to detect the quality of the water-coal slurry, a coal slurry sampling tube 7 is connected to the iron removal barrel 1. A coal slurry sampling switch valve a is provided on the coal slurry sampling tube 7. The coal slurry sampling tube 7 is connected between the coal slurry inlet pipe 3 and the coal slurry outlet pipe 4. The coal slurry sampling tube 7 and the liquid discharge and slag discharge pipe 6 are located on opposite sides of the iron removal barrel 1. In the height direction of the iron removal barrel 1, the coal slurry sampling tube 7 is located between the liquid inlet cleaning pipe 5 and the coal slurry outlet pipe 4.

[0036] Further explanation, the number of the iron removal rods 2 can be selected to be multiple, and multiple iron removal rods 2 are arranged in an array on the iron removal barrel 1; for example, multiple iron removal rods 2 are arranged at intervals to form a circular, annular, rectangular or triangular structure.

[0037] Preferably, the number of the iron removal rods 2 is nine, of which five iron removal rods 2 are arranged at equal intervals along the axis direction of the coal slurry sampling tube 7, and the remaining four iron removal rods 2 are arranged at equal intervals along the axis direction of the coal slurry sampling tube 7, and two rows of iron removal rods 2 are arranged on opposite sides of the axis of the iron removal barrel 1; the number of the iron removal rods 2 can also be selected to be seven, such as Figure 2 shown.

[0038] In order to improve the iron removal effect of the water-coal slurry, five iron removal rods 2 are close to the coal slurry inlet pipe 3, and four iron removal rods 2 are close to the coal slurry outlet pipe 4.

[0039] Further explanation: in order to avoid the scouring of the iron removal rod 2 by the water-coal slurry and reduce its service life, a iron removal sleeve 8 is selected to be sleeved on the outside of the iron removal rod 2. The iron removal sleeve 8 can be made of stainless steel. The iron removal sleeve 8 is located inside the iron removal barrel 1. The iron removal sleeve 8 is wrapped around the outside of the iron removal rod 2, so that the iron removal rod 2 can be placed inside the iron removal sleeve 8. In actual use, the iron removal rod 2 contacts the iron removal sleeve 8, and the water-coal slurry scours the iron removal sleeve 8. The iron impurities in the water-coal slurry are adsorbed by the iron removal sleeve 8, thereby avoiding the scouring of the iron removal rod 2 and reducing the maintenance and replacement costs.

[0040] When cleaning iron impurities, the iron removal rod 2 in the iron removal sleeve 8 can be taken out. At this time, the iron removal sleeve 8 has no magnetic attraction, and the iron impurities can be washed away more effectively, thereby further improving the cleaning efficiency, shortening the downtime, and improving production efficiency.

[0041] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A simple iron removal device for coal slurry, characterized in that: The invention comprises an iron removal bucket (1) and an iron removal rod (2) arranged on the iron removal bucket (1); the iron removal rod (2) and the axis of the iron removal bucket (1) are arranged in the same direction, the iron removal rod (2) and the iron removal bucket (1) are detachably connected, and the iron removal bucket (1) is connected to a coal slurry inlet pipe (3), a coal slurry outlet pipe (4), a liquid inlet cleaning pipe (5) and a liquid outlet slag discharge pipe (6); The coal slurry inlet pipe (3) and the coal slurry outlet pipe (4) are arranged on opposite sides of the iron removal barrel (1), and the iron removal rod (2) is located between the coal slurry inlet pipe (3) and the coal slurry outlet pipe (4); the liquid inlet cleaning pipe (5) is located above the liquid outlet slag discharge pipe (6), and the liquid outlet slag discharge pipe (6) is located below the coal slurry inlet pipe (3).

2. The simple iron removal device for coal slurry according to claim 1, characterized in that: The iron removal barrel (1) is also provided with a coal slurry sampling tube (7), the coal slurry sampling tube (7) is provided with a coal slurry sampling switch valve (a), and the coal slurry sampling tube (7) is located between the coal slurry inlet tube (3) and the coal slurry outlet tube (4).

3. The simple iron removal device for coal slurry according to claim 2, characterized in that: There are multiple iron removal rods (2), and multiple iron removal rods (2) are arranged in an array on the iron removal bucket (1).

4. The simple iron removal device for coal slurry according to claim 3, characterized in that: The number of the iron removal rods (2) is nine, five of the iron removal rods (2) are arranged at equal intervals along the axis of the coal slurry sampling tube (7), four of the iron removal rods (2) are close to the coal slurry inlet pipe (3), four of the iron removal rods (2) are arranged at equal intervals along the axis of the coal slurry sampling tube (7), and three of the iron removal rods (2) are close to the coal slurry outlet pipe (4).

5. The simple iron removal device for coal slurry according to claim 4, characterized in that: The outer side of the deironing rod (2) is provided with a deironing sleeve (8), the deironing rod (2) and the deironing sleeve (8) are detachably connected, and the deironing sleeve (8) is fixedly connected to the deironing bucket (1).

6. The simple iron removal device for coal slurry according to claim 5, characterized in that: The number of the liquid inlet cleaning pipes (5) is two, and the two liquid inlet cleaning pipes (5) are arranged on opposite sides of the iron removal barrel (1). The two liquid inlet cleaning pipes (5) are opposite to the upper end of the iron removal rod (2), and the iron removal rod (2) is located between the two liquid inlet cleaning pipes (5).

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