Mechanical slurry dewatering device

Abstract

The utility model provides a mechanical mud dewatering device which comprises a barrel, a protective cover and a driving unit, two opposite ends of the barrel are respectively and rotatably mounted in an inner cavity of the protective cover, one end of the barrel is provided with a mud feeding pipe communicated with the inner cavity of the barrel, and the other end of the barrel is provided with a mud discharging pipe communicated with the inner cavity of the barrel; by adopting the mud dewatering device, when entering the inner cavity of the barrel, mud rotates along with the barrel at a high speed, the mud is extruded towards the outer wall of the barrel under the action of centrifugal force, water contained in the mud can be thrown out from the water outlet holes in the outer wall of the barrel at the moment, and the mud without the water continues to be kept in the inner cavity of the barrel; and the water flows out from the other end of the barrel along with the rotation of the barrel, so that the purpose of reducing the water content of the slurry is achieved, the fuel consumption required by heating and evaporation can be reduced when the water content of the slurry is evaporated and heated subsequently, and the problem of waste gas generated by consuming a large amount of fuel is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic production, in particular to a mechanical mud dewatering device. Background Art

[0002] Refer to the attached Figure 1 As shown in the figure, it is a schematic diagram of the existing ceramic powder making process flow. In the existing process flow, the raw materials are roughly selected and sent to the ball mill according to a certain ratio. 37% water and certain chemical raw materials (degumming agents, etc.) are added to the ball mill for mixing. After mixing, ball milling is carried out (about 10 hours). After the ball milling is completed, the mud is aged and sieved to remove iron, and then heated to remove moisture, and finally a powder (containing about 7% water) is formed.

[0003] In the above-mentioned process of mud aging to heating and evaporating water, since the water content in the mud is relatively high at this time, a large amount of fuel will be consumed when directly heating and evaporating the water. In addition, the increase in fuel consumption will also lead to an increase in exhaust gas emissions.

[0004] Therefore, it is particularly important to provide a technical means to reduce the moisture content in the mud before heating and evaporation. Summary of the Invention

[0005] In view of the defects existing in the prior art, the purpose of the present invention is to provide a mechanical mud dehydration device to solve the problem in the existing ceramic powder making process that the mud has a large water content, resulting in a large amount of fuel being consumed in the subsequent heating and evaporation process.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] The present application provides a mechanical mud dewatering device, which includes a cylinder, a protective cover and a driving unit. The opposite ends of the cylinder are respectively rotatably mounted in the inner cavity of the protective cover. One end of the cylinder is equipped with a mud feed pipe connected to its inner cavity, and the other end of the cylinder is equipped with a mud discharge pipe connected to its inner cavity. A plurality of water outlet holes are formed on the outer wall of the cylinder, and a water outlet channel is formed between the outer wall of the cylinder and the inner wall of the protective cover. A water outlet connected to the water outlet channel is provided at the bottom of the protective cover. The driving unit is connected to the cylinder for driving the cylinder to rotate.

[0008] Furthermore, a filter screen for filtering mud is installed in the area of the outer wall of the cylinder corresponding to the water outlet.

[0009] Furthermore, the driving unit includes a driving motor, a transmission wheel and a transmission belt, the opposite ends of the transmission belt are respectively installed on the transmission wheel and the outer surface of the cylinder, and the driving motor drives the transmission belt to rotate through the transmission wheel.

[0010] Furthermore, the water outlet is arranged on the outer wall of the cylinder in an area outside the area where the outer wall of the cylinder contacts the transmission belt.

[0011] Furthermore, a slurry inlet valve is installed on the slurry feed pipe, and a slurry outlet valve is installed on the slurry discharge pipe.

[0012] Furthermore, the water outlet is arranged on one side of the bottom of the protective cover adjacent to the mud discharge pipe.

[0013] The beneficial effects of the utility model are:

[0014] By adopting the above-mentioned mud dewatering device, when the mud enters the inner cavity of the cylinder, the mud rotates at high speed with the cylinder, and is squeezed toward the outer wall of the cylinder under the action of centrifugal force. At this time, the water contained in the mud will be thrown out from the water outlet hole on the outer wall of the cylinder, while the mud with water removed will continue to remain in the inner cavity of the cylinder and flow out from the other end of the cylinder as the cylinder rotates, thereby obtaining the mud with reduced moisture. In this way, when the mud is subsequently evaporated and heated, the amount of fuel required for heating and evaporation will be reduced, and the exhaust gas problem caused by consuming a large amount of fuel will also be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the existing ceramic powder making process flow.

[0016] Figure 2 This is a schematic diagram of the structural principle of the mechanical mud dewatering device in an embodiment of the present application.

[0017] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at point A in the figure.

[0018] In the picture:

[0019] 10-Mechanical mud dewatering device, 100-cylinder, 200-drive unit, 201-drive motor, 202-drive wheel, 203-drive belt, 300-mud feed pipe, 400-mud discharge pipe, 500-mud inlet valve, 600-mud discharge valve, 700-filter screen, 800-protective cover, 900-water outlet, 110-water outlet channel. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] See attached Figure 2 As shown, this embodiment provides a mechanical mud dewatering device 10, which includes a cylinder 100, a protective cover 800 and a driving unit 200. The cylinder 100 is installed in the inner cavity of the protective cover 800, and the opposite ends of the cylinder 100 are respectively rotatably connected with the protective cover 800.

[0022] Continue to refer to the attached Figure 2 As shown, a mud feed pipe 300 is installed at one end of the cylinder 100. The mud feed pipe 300 is connected to the inner cavity of the cylinder 100, and the external mud can enter the inner cavity of the cylinder 100 through the mud feed pipe 300. A mud discharge pipe 400 is installed at the other end of the cylinder 100. The mud discharge pipe 400 is connected to the inner cavity of the cylinder 100. When the mud in the inner cavity of the cylinder 100 moves to one end of the mud discharge pipe 400, the mud can flow out through the mud discharge pipe 400.

[0023] Continue to refer to the attached Figure 2 As shown, a plurality of water outlet holes are formed on the outer wall of the cylinder 100, and the water outlet holes are connected to the inner cavity of the cylinder 100. The function of the water outlet holes is that when the mud in the cylinder 100 is in high-speed centrifugal rotation, the water contained in the mud squeezed onto the inner wall of the cylinder 100 can be thrown out to the outside of the cylinder 100 through the water outlet holes, while the mud is retained in the inner cavity of the cylinder 100.

[0024] A water outlet channel 110 is formed between the outer surface of the cylinder 100 and the inner wall of the protective cover 800. Water ejected through the water outlet hole on the cylinder 100 can enter the water outlet channel 110 and store the ejected water. A water outlet 900 is provided at the bottom end of the protective cover 800. The water outlet 900 is connected to the water outlet channel 110. The water in the water outlet channel 110 can be discharged outward through the water outlet 900 to avoid excessive accumulation. In some embodiments, the water outlet 900 is provided on the bottom of the protective cover 800 near the side of the mud discharge pipe 400.

[0025] In order to further prevent the mud from being thrown out of the cylinder 100 through the water outlet hole, a filter 700 for filtering the mud is installed in the area corresponding to the water outlet hole on the outer wall of the cylinder 100.

[0026] Continue to refer to the attached Figure 2 and attached Figure 3As shown, in this embodiment, the drive unit 200 includes a drive motor 201, a transmission wheel 202, and a transmission belt 203. The opposite ends of the transmission belt 203 are respectively mounted on the transmission wheel 202 and the outer surface of the cylinder 100. The drive motor 201 drives the transmission belt 203 to rotate via the transmission wheel 202. It should be noted that the drive unit 200 may also adopt other commonly used drive mechanisms, such as a motor + gear transmission method.

[0027] In this embodiment, since one end of the transmission belt 203 is mounted on the outer surface of the cylinder 100, it is not necessary to provide a water outlet hole in the area of the cylinder 100 corresponding to the mounting of the transmission belt 203. Therefore, the water outlet holes are arranged on the outer wall of the cylinder 100, outside the area where the outer wall of the cylinder 100 contacts the transmission belt 203. For example, if the transmission belt 203 is mounted in the middle of the cylinder 100, the water outlet holes are arranged on the left and right sides of the middle portion of the cylinder 100.

[0028] In order to control the amount of mud entering the inner cavity of the cylinder 100 and the amount of mud flowing out of the inner cavity of the cylinder 100, a mud inlet valve 500 is installed on the mud feed pipe 300, and a mud outlet valve 600 is installed on the mud outlet pipe 400. By controlling the degree of opening of the mud inlet valve 500 and the mud outlet valve 600, the amount of mud entering the cylinder 100 and the amount of mud flowing out of the inner cavity of the cylinder 100 can be controlled, so that the water content of the mud after dehydration by the cylinder 100 can be controlled. For example, by making the valve opening amount of the slurry discharge valve 600 on the mud discharge pipe 400 smaller than the valve opening amount of the slurry inlet valve 500 on the mud inlet pipe 300, the amount of mud flowing out of the inner cavity of the cylinder 100 through the mud discharge pipe 400 per unit time is less than the amount of mud entering the inner cavity of the cylinder 100, and the mud will form a certain degree of accumulation and extrusion in the cylinder 100, so that the speed of mud outflow is reduced, so the mud stays in the cylinder 100 for a longer time, and the water in the mud is thrown out more fully; on the contrary, the mud flows out faster, the mud stays in the cylinder 100 for a shorter time, and the water in the mud is not fully thrown out.

[0029] To sum up, in this embodiment, by adopting the above-mentioned mud dewatering device, when the mud enters the inner cavity of the cylinder 100, the mud rotates at high speed with the cylinder 100, and is squeezed toward the outer wall of the cylinder 100 under the action of centrifugal force. At this time, the water contained in the mud will be thrown out from the water outlet hole on the outer wall of the cylinder 100, and the mud with water removed will continue to remain in the inner cavity of the cylinder 100, and flow out from the other end of the cylinder 100 as the cylinder 100 rotates, thereby obtaining the mud with reduced moisture. In this way, when the mud is subsequently evaporated and heated, the amount of fuel required for heating and evaporation will be reduced, and the exhaust gas problem caused by consuming a large amount of fuel will also be avoided.

[0030] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A mechanical mud dewatering device, characterized in that: The mud dewatering device includes a cylinder, a protective cover and a driving unit. The opposite ends of the cylinder are rotatably mounted in the inner cavity of the protective cover. A mud feed pipe connected to its inner cavity is installed at one end of the cylinder, and a mud discharge pipe connected to its inner cavity is installed at the other end of the cylinder. A plurality of water outlet holes are formed on the outer wall of the cylinder, and a water outlet channel is formed between the outer wall of the cylinder and the inner wall of the protective cover. A water outlet connected to the water outlet channel is provided at the bottom of the protective cover. The driving unit is connected to the cylinder for driving the cylinder to rotate.

2. A mechanical mud dewatering device according to claim 1, characterized in that: A filter screen for filtering mud is installed on the outer wall of the cylinder in an area corresponding to the water outlet.

3. A mechanical mud dewatering device according to claim 1 or 2, characterized in that: The driving unit includes a driving motor, a transmission wheel and a transmission belt. The opposite ends of the transmission belt are respectively installed on the transmission wheel and the outer surface of the cylinder. The driving motor drives the transmission belt to rotate through the transmission wheel.

4. A mechanical mud dewatering device according to claim 3, characterized in that: The water outlet is arranged on the outer wall of the cylinder and is located outside the area where the outer wall of the cylinder contacts the transmission belt.

5. A mechanical mud dewatering device according to claim 1, characterized in that: The mud feed pipe is provided with a mud inlet valve, and the mud discharge pipe is provided with a mud discharge valve.

6. A mechanical mud dewatering device according to claim 1, characterized in that: The water outlet is arranged on one side of the bottom of the protective cover adjacent to the mud discharge pipe.

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