Ceramic slag slurry pump front guard plate sealing tool and forming structure

Abstract

The utility model discloses a kind of ceramic slurry pump front fender sealing tool, comprising: forming die bottom plate, forming die bottom plate is annular structure, the bottom inner wall of forming die bottom plate is provided with first annular step surface, and first annular step surface is used to be fixed with the bottom and outer edge of front fender ceramic piece;The top inner wall of forming die bottom plate is provided with second annular step surface, and second annular step surface is used to be fixed with the bottom and outer edge of front fender metal piece, and the top of second annular step surface is provided with several first fixed holes and first top silk hole;Forming die cover plate, forming die cover plate is round cake structure, the outer periphery of one side of forming die cover plate towards forming die bottom plate is provided with third annular step surface, and third annular step surface is used to compress tightly front fender metal piece, the top of front fender inlet ceramic tube, and the radial limit of front fender inlet ceramic tube is carried out, and the top of third annular step surface is provided with several second fixed holes and second top silk hole.

Description

Technical Field

[0001] This utility model relates to the field of pump component processing tooling technology, and in particular to a sealing tooling and molding structure for a ceramic slurry pump front guard plate. Background Technology

[0002] Ceramic slurry pumps are widely used in power plants, chemical plants, metallurgical plants, cement plants, mines, seawater sand washing plants, and river channels due to the corrosion resistance and wear resistance of ceramic materials, low requirements for the water quality (as long as the water contains sludge and small solid particles), high efficiency, and strong centrifugal force. Their main functions include diversion, material feeding, sewage discharge, and sludge removal. See also... Figures 1 to 3 As shown, the current slurry pump front guard plate includes a ceramic front guard plate 10, a metal front guard plate 20, and an inlet ceramic front guard plate 30. The gaps between the three are fixedly connected by a cast resin bonding layer 40. Several casting through holes 50 are provided on the outer periphery of the middle part of the metal front guard plate 20. The slurry pump front guard plate, together with the impeller, inner pump body, and rear guard plate, constitutes the slurry pump flow channel. Therefore, the machining accuracy of the front guard plate is required to be relatively high; otherwise, it will lead to slurry leakage in the flow channel and a decrease in efficiency. Therefore, in the design process of the ceramic slurry pump front guard plate bonding fixture, the dimensional accuracy of the fixture must be ensured. It usually needs to be controlled within a small tolerance range to ensure that the cast parts can be assembled smoothly and operate normally. The fixture material should have good compatibility with the ceramic slurry and resin casting materials, and should not cause chemical reactions or adsorption phenomena to avoid affecting the quality and performance of the parts. In addition, the fixture needs to have sufficient strength and durability to withstand the pressure and wear during the casting process. Especially for materials with strong wear resistance such as ceramic slurry, the durability of the fixture directly affects the production efficiency and cost. However, current sealing fixtures have drawbacks such as difficulty in positioning, weak adhesion, and easy wear and tear. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned deficiencies and defects of the existing technology by providing a ceramic slurry pump front guard plate sealing fixture and molding structure to solve the above problems.

[0004] The technical problem solved by this utility model can be achieved by the following technical solution: A sealing fixture for the front guard plate of a ceramic slurry pump includes: A molding die base plate has an annular structure. The bottom inner wall of the molding die base plate is provided with a first annular step surface, which is used to fix the bottom and outer edge of the front guard plate ceramic part. The top inner wall of the molding die base plate is provided with a second annular step surface, which is used to fix the bottom and outer edge of the front guard plate metal part. The top of the second annular step surface is provided with a plurality of first fixing holes and first set screw holes. The forming mold cover plate has a disc-shaped structure. A third annular step surface is provided on the outer periphery of the side of the forming mold cover plate facing the forming mold base plate. The third annular step surface is used to press the top of the front guard plate metal part and the front guard plate inlet ceramic tube, and to radially limit the front guard plate inlet ceramic tube. A number of second fixing holes and second set screw holes are provided on the top of the third annular step surface.

[0005] In a preferred embodiment of the present invention, the inner circumference of the first annular step surface is configured as a guide slope structure.

[0006] In a preferred embodiment of the present invention, a sealing ring is provided at the bottom of the first annular stepped surface.

[0007] In a preferred embodiment of this utility model, the forming mold base plate is made of cast aluminum.

[0008] In a preferred embodiment of this utility model, the forming mold cover plate is made of steel plate material.

[0009] A ceramic slurry pump front guard plate molding structure includes a ceramic slurry pump front guard plate sealing fixture as described in any of the above technical solutions, and also includes a front guard plate. The front guard plate includes a front guard plate ceramic component, a front guard plate metal component, and a front guard plate inlet ceramic pipe. The gap between the three is fixedly connected by a cast resin connecting layer. After the front guard plate ceramic component is positioned on the first annular step surface and the front guard plate metal component is fixed on the second annular step surface, a gap is left between the front guard plate ceramic component and the front guard plate metal component to allow for the casting of the resin connecting layer. The molding mold cover plate is connected to the top of the inner edge of the front guard plate metal component, so that the third annular step surface presses against the top of the front guard plate metal component and the front guard plate inlet ceramic pipe, and radially limits the front guard plate inlet ceramic pipe.

[0010] By employing the above technical solution, this utility model utilizes the forming mold base plate and forming mold cover plate to process and position the front guard plate, solving the problems of difficult positioning and weak adhesion. Furthermore, the forming mold base plate and forming mold cover plate are made of high-temperature resistant and wear-resistant materials, solving the problem of easy wear. This utility model also provides a forming structure for the front guard plate of a ceramic slurry pump. This forming structure can effectively improve the utilization rate of casting materials, shorten the production cycle, reduce production costs, and is convenient, safe, and highly reliable in use and installation. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the front guard plate of a slurry pump in the existing technology.

[0013] Figure 2 yes Figure 1 A structural diagram viewed from another angle.

[0014] Figure 3 yes Figure 1 A sectional view.

[0015] Figure 4 This is a schematic diagram of the forming mold base plate of a ceramic slurry pump front guard plate sealing tool according to the present invention.

[0016] Figure 5 yes Figure 4 A structural diagram viewed from another angle.

[0017] Figure 6 yes Figure 4 A sectional view.

[0018] Figure 7 This is a schematic diagram of the molding die cover plate of a ceramic slurry pump front guard plate sealing fixture according to this utility model.

[0019] Figure 8 yes Figure 7 A structural diagram viewed from another angle.

[0020] Figure 9 yes Figure 7 A sectional view.

[0021] Figure 10 This is a schematic diagram of the molding structure of a ceramic slurry pump front guard plate according to the present invention.

[0022] Figure 11 yes Figure 10 A structural diagram viewed from another angle.

[0023] Figure 12 yes Figure 10 A sectional view.

[0024] Reference numerals: 10 for front guard plate ceramic part; 20 for front guard plate metal part; 30 for front guard plate inlet ceramic tube; 40 for resin bonding layer; 50 for casting through hole; 100 for molding mold base plate; 110 for first annular step surface; 111 for guide inclined surface structure; 120 for second annular step surface; 121 for first fixing hole; 122 for first ejector screw hole; 200 for molding mold cover plate; 210 for third annular step surface; 211 for second fixing hole; 212 for second ejector screw hole. Detailed Implementation

[0025] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0026] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0027] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] See Figures 4 to 9 The ceramic slurry pump front guard sealing fixture shown includes a molding die base plate 100 and a molding die cover plate 200.

[0029] The molding die base plate 100 is made of cast aluminum and has an annular structure. The bottom inner wall of the molding die base plate 100 is provided with a first annular stepped surface 110, which is used to fix the bottom and outer edge of the front guard plate ceramic part. The top inner wall of the molding die base plate 100 is provided with a second annular stepped surface 120, which is used to fix the bottom and outer edge of the front guard plate metal part. The top of the second annular stepped surface 120 is provided with several first fixing holes 121 and first set screw holes 122. To facilitate alignment and positioning, the inner circumference of the first annular stepped surface 110 is provided with a guide slope structure 111 to facilitate the positioning of the front guard plate ceramic part. Preferably, a sealing ring is provided at the bottom of the first annular stepped surface 110 to prevent leakage during the pouring of low-temperature ceramic material.

[0030] The forming mold cover plate 200 is made of steel plate material. The forming mold cover plate 200 has a disc structure. A third annular step surface 210 is provided on the outer periphery of the side of the forming mold cover plate 200 facing the forming mold base plate 100. The third annular step surface 210 is used to press the top of the front guard plate metal part and the front guard plate inlet ceramic tube, and to radially limit the front guard plate inlet ceramic tube. Several second fixing holes 211 and second set screw holes 212 are provided on the top of the third annular step surface 210.

[0031] Combination Figures 10 to 12 The illustrated ceramic slurry pump front guard plate molding structure includes the aforementioned ceramic slurry pump front guard plate sealing fixture, and also includes a front guard plate. The front guard plate includes a front guard plate ceramic component 10, a front guard plate metal component 20, and a front guard plate inlet ceramic tube 30. The gaps between the three components are fixedly connected by a cast resin connecting layer 40. After the front guard plate ceramic component 10 is positioned on the first annular step surface 110 and the front guard plate metal component 20 is fixed on the second annular step surface 120, a gap is left between the front guard plate ceramic component 10 and the front guard plate metal component 20 to allow for the casting of the resin connecting layer 40. The molding mold cover plate 200 is connected to the top of the inner edge of the front guard plate metal component 20, so that the third annular step surface 210 presses against the top of the front guard plate metal component 20 and the front guard plate inlet ceramic tube 30, and radially limits the front guard plate inlet ceramic tube 30.

[0032] The usage process of this utility model is as follows: During installation, first install the front guard plate ceramic component 10 on the first annular step surface 110 of the molding mold base plate 100, then lay the pre-prepared low-temperature ceramic material, and simultaneously bond the front guard plate inlet ceramic tube 30 to the front guard plate ceramic component 10. The front guard plate metal component 20 is then pressed onto the low-temperature ceramic material. Bolts are used to connect and lock the front guard plate metal component 20 to the first fixing hole 121 of the molding mold base plate 100. After the low-temperature ceramic material dries, secondary pouring is performed through the gap between the front guard plate metal component 20 and the front guard plate inlet ceramic tube 30. The pouring through hole 50 allows for pouring and observation of the pouring height. The front guard plate metal component 20 is then bonded to the front guard plate inlet ceramic tube 30. Pouring is stopped when the design position is reached. The molding mold cover plate 200 is then installed with the front guard plate metal component 20. Bolts are used to connect and lock the top of the front guard plate metal component 20 to the second fixing hole 211 of the molding mold cover plate 200, thus sealing and preventing leakage. Finally, after the front guard plate ceramic part 10, the front guard plate metal part 20 and the front guard plate inlet ceramic tube 30 are fixed and formed, they can be demolded using the first set screw hole 122 and the second set screw hole 212.

[0033] This invention utilizes a molding die base plate and a molding die cover plate for machining and positioning the front guard plate, solving the problems of difficult positioning and weak adhesion. Furthermore, the molding die base plate and cover plate are made of high-temperature resistant and wear-resistant materials, solving the problem of easy wear. This invention also provides a molding structure for a ceramic slurry pump front guard plate, which can effectively improve the utilization rate of casting materials, shorten the production cycle, reduce production costs, and is convenient, safe, and highly reliable in use and installation. This invention also allows for flexible selection of the sealing fixture model and positioning hole diameter according to the outer diameter of the slurry pump front guard plate.

[0034] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0035] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0036] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing fixture for the front guard plate of a ceramic slurry pump, characterized in that, include: A molding die base plate has an annular structure. The bottom inner wall of the molding die base plate is provided with a first annular step surface, which is used to fix the bottom and outer edge of the front guard plate ceramic part. The top inner wall of the molding die base plate is provided with a second annular step surface, which is used to fix the bottom and outer edge of the front guard plate metal part. The top of the second annular step surface is provided with a plurality of first fixing holes and first set screw holes. The forming mold cover plate has a disc-shaped structure. A third annular step surface is provided on the outer periphery of the side of the forming mold cover plate facing the forming mold base plate. The third annular step surface is used to press the top of the front guard plate metal part and the front guard plate inlet ceramic tube, and to radially limit the front guard plate inlet ceramic tube. A number of second fixing holes and second set screw holes are provided on the top of the third annular step surface.

2. The sealing fixture for the front guard plate of a ceramic slurry pump according to claim 1, characterized in that, The inner circumference of the first annular step surface is configured as a guide slope structure.

3. The sealing fixture for the front guard plate of a ceramic slurry pump according to claim 1, characterized in that, A sealing ring is provided at the bottom of the first annular step surface.

4. The sealing fixture for the front guard plate of a ceramic slurry pump according to claim 1, characterized in that, The base plate of the molding die is made of cast aluminum.

5. The sealing fixture for the front guard plate of a ceramic slurry pump according to claim 1, characterized in that, The mold cover is made of steel plate.

6. A ceramic slurry pump front guard plate forming structure, comprising a ceramic slurry pump front guard plate sealing fixture as described in any one of claims 1-5, characterized in that, It also includes a front guard plate, which comprises a ceramic part, a metal part, and an inlet ceramic tube. The gap between the three is fixedly connected by a cast resin bonding layer. After the ceramic part is positioned on the first annular step surface and the metal part is fixed on the second annular step surface, a gap is left between the ceramic part and the metal part to allow for the casting of the resin bonding layer. The mold cover plate is connected to the top of the inner edge of the metal part, so that the third annular step surface presses against the top of the metal part and the inlet ceramic tube and radially limits the inlet ceramic tube.

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