Pushing centrifuge drum structure with good filtering performance

Abstract

The utility model belongs to the field of centrifuge drums, and particularly relates to a material pushing centrifuge drum structure with good filtering performance. Comprising a first-stage rotary drum, a push rod shaft, a second-stage rotary drum, a pressing ring and a rotary drum screen, the first-stage rotary drum and the second-stage rotary drum are sleeved together, a hole is formed in the head end of the first-stage rotary drum so that the push rod shaft can be connected with the second-stage rotary drum, the first-stage rotary drum is fixedly connected with a hollow shaft, and the rotary drum screen is installed on the first-stage rotary drum and the second-stage rotary drum through the pressing ring. And a plurality of rotary drum water filtering waist-shaped holes are formed in the first-stage rotary drum and the second-stage rotary drum. The rotary drum water filtering waist-shaped holes are adopted, the aperture ratio of the rotary drum is increased, so that the rotary drum has better drainage rate, the water content of filter materials is greatly reduced, meanwhile, the mass of the rotary drum is reduced, the rotating power of the material pushing centrifugal machine is also reduced, and the energy consumption is saved.

Description

Technical Field

[0001] The utility model belongs to the field of centrifuge drums, and in particular relates to a pusher centrifuge drum structure with good filtering performance. Background Art

[0002] In the current soda ash production, the equipment used in the heavy alkali filtration process is mainly belt filters or vacuum drum filters, but belt filters and vacuum drum filters have the disadvantages of high energy consumption and high moisture content of filter cakes. The existing pusher centrifuge for heavy alkali filtration also has the problem of high moisture content of filter cakes.

[0003] Patent application number CN201644242U is a pusher centrifuge drum with a surface coating. By setting a coating on the screen, ordinary carbon steel can replace ordinary stainless steel material, but the drum water filter holes on the drum surface are not changed, and the dehydration efficiency of the drum is still low. Therefore, it is urgent for those skilled in the art to solve the above technical problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a pusher centrifuge drum structure with good filtering performance in view of the deficiencies of the above-mentioned prior art. The pusher centrifuge drum structure with good filtering performance can improve the drainage rate of the drum and reduce the weight of the drum at the same time.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a pusher centrifuge drum structure with good filtering performance, used to assist the solid-liquid separation of the pusher centrifuge, including a primary drum, a push rod shaft, a secondary drum, a pressure ring and a drum screen assembly. The drum screen assembly includes a primary drum and a secondary drum, the primary drum and the secondary drum are set together, the first end of the primary drum has a hole for the push rod shaft to connect to the secondary drum, the primary drum is fixedly connected to the push rod shaft, the primary drum and the secondary drum are installed with a primary drum screen through a pressure ring, and a plurality of drum water filtering waist-shaped holes are provided on the primary drum and the secondary drum.

[0006] Furthermore, the tail ends of the first drum and the second drum are of coverless structure.

[0007] The coverless structure makes maintenance easier, allowing quicker access to the drum for cleaning, repair and replacement of parts: The coverless structure allows operators to directly observe the operation of the drum, facilitating monitoring of the equipment's operating status and timely detection of abnormalities; The coverless structure provides better air permeability, helps reduce humidity and heat accumulation inside the drum, and is conducive to stable operation of the equipment; The coverless structure can avoid accumulation of substances on the lid or seal, avoiding adverse effects on the production process.

[0008] Furthermore, the head end of the secondary drum is fixedly connected to the push rod shaft, and a secondary drum screen is installed on the secondary drum through a pressure ring.

[0009] Fixed connection can improve the connection stability between the push rod shaft and the drum, reduce vibration and noise, and thus improve the smoothness and reliability of equipment operation; fixed connection can ensure that the push rod shaft can effectively transmit power to the drum, thereby ensuring the normal operation of the equipment; fixed connection is usually easier to maintain and replace parts, and it is also convenient to adjust the friction relationship between the push rod shaft and the drum; under certain process requirements, fixed connection can better meet the specific process requirements of equipment use and ensure the stability and efficiency of the equipment; it is necessary to determine whether to use a fixed connection based on the specific equipment design and process requirements to ensure the safe and efficient operation of the equipment.

[0010] Furthermore, a pushing assembly is provided on the inner wall of the first end of the first drum, and the pushing assembly includes a pushing plate assembly and a return plate support. The pushing plate support is fixed on the inner wall of the first end of the first drum, and the return plate is fixed on the return plate support. The pushing assembly and the second drum form a product filtering chamber.

[0011] The pusher assembly and the secondary drum form a product filtration chamber, which can effectively filter and separate the product and improve the purity and quality of the product; the setting of the pusher assembly can help control the flow of the product in the drum, which is beneficial to improving the stability and controllability of the production process; through the design of the product filtration chamber, the residence time of the product in the drum can be more effectively controlled, thereby improving production efficiency; the setting of the pusher assembly makes the filtration chamber easier to clean and maintain, which is beneficial to maintaining the normal operation of the equipment: optimizing the filtration and separation process can reduce energy consumption and improve energy utilization efficiency.

[0012] Furthermore, the primary drum and the secondary drum are made of titanium alloy.

[0013] Titanium alloy has excellent corrosion resistance and can resist erosion by a variety of chemical media and corrosive substances, thus improving the service life and stability of the equipment. Titanium alloy has the same strength as steel, but weighs only about half of steel, thus reducing the weight of the equipment, energy consumption and transportation costs. Titanium alloy can maintain strength and hardness in high temperature environments and has good heat resistance, making it suitable for high temperature operating environments. Titanium alloy has good biocompatibility with human tissue, thus making it suitable for medical devices and bioengineering fields. Titanium alloy can be precisely processed, thus facilitating the manufacture of precise drum structures and improving the performance and stability of the equipment.

[0014] Furthermore, the push rod shaft is installed in the hollow shaft.

[0015] Setting the push rod shaft in the hollow shaft can reduce the weight of the entire mechanical device, which is very beneficial for mobile equipment or equipment that needs to be lightweight; by setting the push rod shaft in the hollow shaft, the rigidity and stability of the system can be improved, especially in equipment with high-speed rotation or high-frequency vibration, which is beneficial to reduce vibration and improve transmission accuracy; the hollow shaft can make the overall structure more compact and save space, and is particularly suitable for equipment with limited space; the setting of the push rod shaft can facilitate the connection and maintenance of the transmission device, making the entire transmission system more flexible and easy to operate; setting the push rod shaft in the hollow shaft can reduce inertia and reduce energy loss, and also help to reduce vibration noise and improve the operating efficiency and comfort of the equipment.

[0016] The utility model has the following beneficial effects:

[0017] 1. The water filter holes of the rotary drum used in the utility model are set as waist-shaped holes. Compared with the existing rotary drum, the opening rate of the utility model is larger, so that the rotary drum has a better drainage rate, and the moisture content of the filter cake is greatly reduced. At the same time, the mass of the rotary drum is reduced, and the rotation power of the pusher centrifuge is also reduced, saving energy consumption;

[0018] 2. The utility model is provided with a multi-stage drum, and the first-stage drum cooperates with the second-stage drum to greatly reduce the moisture content of the filter material and improve the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the first-stage drum of the utility model.

[0021] The components include: 1-push plate assembly; 11-push plate support; 12-push plate; 2-hollow shaft; 31-first-stage drum; 32-first-stage drum screen; 41-second-stage drum; 42-second-stage drum screen; 5-push rod shaft; 6-waist-shaped hole for water filter in drum. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0023] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0024] Reference Figure 1 and Figure 2 It can be seen that a pusher centrifuge drum structure with good filtering performance mainly includes a hollow shaft 2 of a hollow structure, the hollow shaft 2 is connected to a primary drum 31, the primary drum 31 is installed with a primary drum screen 32 through a pressing ring, and a push rod shaft 5 is arranged in the hollow shaft 2, the push rod shaft 5 is connected to a secondary drum 41, and the secondary drum 41 is installed with a secondary drum screen 42 through a pressing ring, and a pusher plate assembly 1 includes a pusher plate support 11 and a pusher plate 12, wherein the pusher plate support 11 is connected to the primary drum 31 and passes through the head end of the secondary drum 41, and the pusher plate A pushing plate 12 is connected to the rear end of the support 11; a plurality of waist-shaped holes 6 for drum water filtering are arranged on the surfaces of the first-stage drum 31 and the second-stage drum 41. For the production work of heavy alkali solid-liquid separation, the first-stage drum 31 and the second-stage drum 41 can be made of corrosion-resistant materials. By providing the first-stage drum 31 and the second-stage drum 41 with a plurality of waist-shaped holes 6 for drum water filtering, the filtering performance of the filter material during heavy alkali filtering can be improved, and the water content of the filter material can be reduced. In addition, the waist-shaped holes 6 for drum water filtering can greatly reduce the weight of the first-stage drum 31 and the second-stage drum 41.

[0025] When in use, the primary drum 31 is driven by the hollow shaft 2 to make a rotational motion, a waist-shaped hole is opened on the drum wall of the primary drum 31, and a primary drum screen 32 is installed on the inner wall of the primary drum 31 in cooperation with the pressure ring; the push rod shaft 5 follows the hollow shaft 2 to make a rotational motion, and itself makes a reciprocating axial motion; the secondary drum 41 is located in the primary drum 31, and is driven by the push rod shaft 5, a waist-shaped hole is also opened on the drum wall of the secondary drum 41, and a secondary drum screen 42 is installed in cooperation with the pressure ring inside the secondary drum 41; the first end of the primary drum 31 fixes the pusher plate 12 through the pusher plate support 11, and the filter material makes a centrifugal motion in the pusher plate assembly 1 and the secondary drum 41 to achieve solid-liquid separation, and then the filtrate separated by the secondary drum 41 is further separated by the primary drum 31, and the filtrate after separation is discharged from the pusher centrifuge through the discharge structure of the pusher centrifuge.

[0026] Compared with the existing pusher centrifuge drum, the waist-shaped drainage holes are used to increase the drum opening rate, which is increased by 2 to 3 times. The first-stage drum 31 and the second-stage drum 41 have a better drainage rate, which greatly reduces the moisture content of the filter material and increases the filtering effect of the centrifuge. At the same time, the mass of the first-stage drum 31 and the second-stage drum 41 is reduced, and the rotation power and pushing power of the pusher centrifuge are also reduced, saving energy consumption.

[0027] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A pusher centrifuge drum structure with good filtering performance, used to assist the solid-liquid separation of the pusher centrifuge, characterized by: It includes a primary drum, a push rod shaft, a secondary drum, a pressure ring and a drum screen assembly, the drum screen assembly includes a primary drum screen and a secondary drum screen, the primary drum and the secondary drum are fitted together, the first end of the primary drum has a hole for the push rod shaft to connect to the secondary drum, the primary drum is fixedly connected to the push rod shaft, the primary drum and the secondary drum are installed with the primary drum screen via a pressure ring, and a plurality of drum water filtering waist-shaped holes are provided on the primary drum and the secondary drum.

2. A pusher centrifuge drum structure with good filtering performance according to claim 1, characterized in that: The tail ends of the primary drum and the secondary drum are of coverless structure.

3. A pusher centrifuge drum structure with good filtering performance according to claim 1, characterized in that: The head end of the secondary drum is fixedly connected to the push rod shaft, and the secondary drum is equipped with the secondary drum screen via a pressure ring.

4. A pusher centrifuge drum structure with good filtering performance according to claim 1, characterized in that: The inner wall of the first end of the first drum is also provided with a pushing assembly, which includes a pushing plate assembly and a return plate support. The pushing plate support is fixed to the inner wall of the first end of the first drum, and the return plate is fixed on the return plate support. The pushing assembly and the second drum form a product filtering chamber.

5. A pusher centrifuge drum structure with good filtering performance according to claim 1, characterized in that: The primary drum and the secondary drum are made of corrosion-resistant metal materials.

6. A pusher centrifuge drum structure with good filtering performance according to claim 1, characterized in that: The push rod shaft is installed in the push rod shaft.

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