Slurry pump volute with novel silicon carbide-based composite material

Abstract

The invention belongs to the technical field of slurry pump volutes, and discloses a slurry pump volute with a novel silicon carbide-based composite material, the slurry pump volute comprises a front shell, and the back of the front shell is movably connected with a rear shell. Through the arrangement of the front frame, the rear frame, the sealing rubber strip and the rubber jacket, the sealing rubber strip can play a sealing effect on the front shell and the rear shell, and the sealing rubber strip is located outside the front shell and the rear shell, so that an operator can conveniently overhaul and replace, and the operator only needs to rotate a nut, so that the operation is convenient. The nut is separated from the outer surface of the screw rod, then fixing of the connecting block can be relieved, then the fixing plate can be taken away by disassembling the bolt connected between the fixing plate and the rear frame, accordingly, the rectangular block is separated from the interior of the fixing frame, and fixing of the sealing rubber strip and the rubber outer sleeve is relieved. And therefore, the sealing rubber strip can be replaced and overhauled.

Description

Technical Field

[0001] This invention belongs to the field of slurry pump volute technology, specifically a slurry pump volute with a novel silicon carbide-based composite material. Background Technology

[0002] Slurry pumps are special industrial pumps designed for conveying high-concentration, high-hardness, and highly corrosive solid-liquid mixtures. Their core components are made of wear-resistant alloys or rubber. By optimizing the structural design of the impeller, wear plates, and flow-through components, the wear and corrosion of the pump body by the medium are effectively reduced. At the same time, they have the characteristics of high efficiency and energy saving, stable operation, and convenient maintenance. They are widely used in mining, metallurgy, power, coal, chemical and other fields, and are key equipment in solid-liquid conveying systems to achieve continuous operation, extend equipment life, and reduce operating costs.

[0003] The volute of a slurry pump is one of the core components of the pump. Its core function is to efficiently convert the kinetic energy generated by the impeller rotation into static pressure energy through the flow channel design, while optimizing the slurry flow path to reduce energy loss and turbulence. The volute of a slurry pump consists of a front casing and a rear casing, which are connected by bolts. A sealing ring is installed between the front and rear casings to ensure sealing. However, this design makes the sealing ring easily come into contact with the slurry, which can lead to damage over time and affect the sealing effect. Furthermore, replacing or repairing the sealing ring requires disconnecting the connection between the front and rear casings, which is quite troublesome. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a slurry pump volute with a novel silicon carbide-based composite material to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a slurry pump volute with a novel silicon carbide-based composite material, comprising a front housing, a rear housing movably connected to the back of the front housing, a front frame fixedly sleeved on the outer surface of the front housing, a rear frame fixedly sleeved on the outer surface of the rear housing, a movable connection between the front and rear frames, sealing strips movably connected to the outer surfaces of both the front and rear frames, a rubber sleeve fixedly sleeved on the outer surface of the sealing strips, a connecting block fixedly connected to the top of the rubber sleeve, a screw movably sleeved inside the connecting block, the bottom end of the screw fixedly connected to the outer surface of the rear frame, the bottom of the screw movably connected to the outer surface of the front frame, a washer movably sleeved on the outer surface of the screw above the connecting block, a nut threaded onto the outer surface of the screw, a fixing plate fixedly connected to the left side of the back of the rear frame, a clamping bolt threaded onto the inner thread of the fixing plate, the right end of the clamping bolt movably connected to the outer surface of the rubber sleeve, and bolt holes provided inside both the front and rear frames.

[0006] As a preferred embodiment of the present invention, a mounting block is fixedly connected to the bottom left side of the fixing plate, an adjusting bolt is threaded into the internal thread of the mounting block, and a circular plate is fixedly connected to the bottom of the adjusting bolt.

[0007] In a preferred embodiment of the present invention, a fixing frame is movably fitted onto the outer surface of the adjusting bolt, the right side of the fixing frame is movably connected to the outer surface of the rubber sleeve, and a rectangular block is movably fitted inside the fixing frame, the right end of the rectangular block being fixedly connected to the outer surface of the rubber sleeve.

[0008] As a preferred embodiment of the present invention, an output pipe is fixedly installed on the left side of the outer surface of both the front housing and the rear housing, and a first flange is fixedly connected to the top of the output pipe.

[0009] As a preferred embodiment of the present invention, an input pipe is fixedly connected to the front of the front housing, and a second flange is fixedly installed on the front of the input pipe.

[0010] As a preferred embodiment of the present invention, reinforcing ribs are fixedly installed on the inner surfaces of both the front and rear shells, and an external slag discharge hole is provided at the bottom of the inner surface of the rear shell.

[0011] As a preferred embodiment of the present invention, a protective sleeve is movably connected between the front housing and the rear housing, and an inner slag discharge hole is provided at the bottom of the inner surface of the protective sleeve.

[0012] In a preferred embodiment of the present invention, an outer sealing plug is movably sleeved inside the outer slag discharge hole, a connecting column is fixedly connected to the inner end of the outer sealing plug, an inner sealing plug is fixedly connected to the inner end of the connecting column, and the outer surface of the inner sealing plug is movably sleeved with the inner surface of the inner slag discharge hole.

[0013] As a preferred embodiment of the present invention, a fixing sleeve is fixedly installed at the bottom of the back side of the rear housing, a movable plate is movably sleeved inside the fixing sleeve, a tightening bolt is threaded inside the movable plate, and the inner end of the tightening bolt is movably connected to the outer surface of the outer sealing plug.

[0014] In a preferred embodiment of the present invention, a mounting bracket is fixedly connected to the outer surface of the fixed sleeve, a pull rod is movably sleeved inside the mounting bracket, an insert rod is fixedly connected to the inner end of the pull rod, the inner end of the insert rod extends into the interior of the movable plate and movably sleeves with the inner wall of the movable plate, a spring is fixedly connected to the outer end of the insert rod, and the other end of the spring is fixedly connected to the inner surface of the mounting bracket.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention, by setting a front frame, a rear frame, a sealing strip, and a rubber sleeve, achieves a sealing effect between the front and rear housings due to the design of the sealing strip. Furthermore, since the sealing strip is located on the outside of the front and rear housings, it facilitates maintenance and replacement by operators. Operators only need to rotate the nut to disengage it from the outer surface of the screw, thereby releasing the fixing of the connecting block. Then, by disassembling the bolts connecting the fixing plate to the rear frame, the fixing plate can be removed outwards, causing the rectangular block to detach from the interior of the fixing frame. This releases the fixing of the sealing strip and the rubber sleeve, allowing for replacement and maintenance of the sealing strip.

[0017] 2. This invention, by setting up an installation block, adjusting bolts, a fixing frame, and a rectangular block, allows the operator to first fix the connecting block when installing the sealing strip and rubber sleeve. Then, by rotating the adjusting bolts, the adjusting bolts move upward inside the installation block, thereby causing the fixing frame to rise. This causes the fixing frame to move the sealing strip and rubber sleeve through the rectangular block, making the sealing strip and rubber sleeve taut and ensuring that the sealing strip is tightly attached to the outer surface of the front and rear frame, thus improving the sealing effect of the sealing strip.

[0018] 3. By setting an outer sealing plug, an inner sealing plug, a movable plate, and a clamping bolt, when large-volume particles deposited inside the rear housing and sheath need to be discharged, the clamping bolt can be rotated to release the pressure on the outer sealing plug, and then the pull rod can be pulled upwards to cause the pull rod to drive the insert rod away from the inside of the movable plate, thereby releasing the fixing effect on the movable plate. At this time, the movable plate can be pulled out of the inside of the fixed sleeve, and then the outer sealing plug, connecting column, and inner sealing plug can be pulled out, so that the large-volume particles can be discharged through the inner slag discharge hole and the outer slag discharge hole. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a cross-sectional view of the front of the present invention;

[0021] Figure 3 This is a schematic diagram of the front frame structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the sealing strip and rubber jacket structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the rear frame of the present invention;

[0024] Figure 6 This is a cross-sectional view of the sealing strip of the present invention;

[0025] Figure 7This is a schematic diagram of the internal structure of the rear housing of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure on the back of the present invention;

[0027] Figure 9 This is a schematic cross-sectional view of the side of the present invention;

[0028] Figure 10 This is a cross-sectional structural diagram of the sheath of the present invention;

[0029] Figure 11 for Figure 6 A magnified schematic diagram of the partial structure at point A in the middle;

[0030] Figure 12 for Figure 6 A magnified view of the structure at point B in the middle;

[0031] Figure 13 for Figure 9 A magnified schematic diagram of the local structure at point C;

[0032] Figure 14 for Figure 10 A magnified schematic diagram of the structure at point D.

[0033] In the diagram: 1. Front housing; 2. Rear housing; 3. Front frame; 4. Rear frame; 5. Sealing strip; 6. Rubber jacket; 7. Connecting block; 8. Screw; 9. Gasket; 10. Nut; 11. Fixing plate; 12. Clamping bolt; 13. Bolt hole; 14. Mounting block; 15. Adjusting bolt; 16. Circular plate; 17. Fixing frame; 18. Output pipe; 19. First flange; 20. Input pipe; 21. Second flange; 22. Reinforcing rib; 23. External slag discharge hole; 24. Sheath; 25. Internal slag discharge hole; 26. External sealing plug; 27. Connecting column; 28. Internal sealing plug; 29. ​​Fixing sleeve; 30. Movable plate; 31. Tightening bolt; 32. Mounting bracket; 33. Tie rod; 34. Insert rod; 35. Spring; 36. Rectangular block. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1 to 14As shown, this embodiment of the invention provides a slurry pump volute with a novel silicon carbide-based composite material, including a front housing 1, a rear housing 2 movably connected to the back of the front housing 1, a front frame 3 fixedly sleeved on the outer surface of the front housing 1, a rear frame 4 fixedly sleeved on the outer surface of the rear housing 2, the front frame 3 and the rear frame 4 being movably connected, and sealing strips 5 being movably connected to the outer surfaces of both the front frame 3 and the rear frame 4, a rubber sleeve 6 fixedly sleeved on the outer surface of the sealing strip 5, and a connecting block 7 fixedly connected to the top of the rubber sleeve 6, the inner surface of the connecting block 7 being... A screw 8 is movably sleeved on the rear frame 4. The bottom end of the screw 8 is fixedly connected to the outer surface of the rear frame 4. The bottom of the screw 8 is movably connected to the outer surface of the front frame 3. A washer 9 located above the connecting block 7 is movably sleeved on the outer surface of the screw 8. A nut 10 is threaded onto the outer surface of the screw 8. A fixing plate 11 is fixedly connected to the left side of the back of the rear frame 4. A clamping bolt 12 is threaded onto the inside of the fixing plate 11. The right end of the clamping bolt 12 is movably connected to the outer surface of the rubber sleeve 6. Bolt holes 13 are opened inside both the front frame 3 and the rear frame 4.

[0036] Operators can use bolts to insert into the bolt holes 13 to fix the front frame 3 and the rear frame 4 together, thereby completing the fixation between the front housing 1 and the rear housing 2. Due to the design of the sealing strip 5, the sealing strip 5 can be tightly attached to the outer surface of the front frame 3 and the rear frame 4, thereby sealing the front frame 3 and the rear frame 4 and improving the sealing performance between the front housing 1 and the rear housing 2. Operators can also tighten the connecting block 7 by rotating the nut 10 and tighten the rubber sleeve 6 by rotating the clamping bolt 12, thereby fixing the sealing strip 5 and the rubber sleeve 6 at both ends. The fixing plate 11 is fixed to the back of the rear frame 4 with bolts, which facilitates the installation and removal of the fixing plate 11 by the operator.

[0037] Among them, a mounting block 14 is fixedly connected to the bottom left side of the fixing plate 11, and an adjusting bolt 15 is threaded inside the mounting block 14. A circular plate 16 is fixedly connected to the bottom of the adjusting bolt 15.

[0038] The operator can rotate the adjusting bolt 15, which will cause the adjusting bolt 15 to move up or down inside the mounting block 14.

[0039] Among them, the outer surface of the adjusting bolt 15 is movably sleeved with a fixing frame 17, the right side of the fixing frame 17 is movably connected to the outer surface of the rubber sleeve 6, and the inside of the fixing frame 17 is movably sleeved with a rectangular block 36, the right end of the rectangular block 36 is fixedly connected to the outer surface of the rubber sleeve 6.

[0040] The operator rotates the adjusting bolt 15, causing the adjusting bolt 15 to move upward inside the mounting block 14, which in turn drives the fixing frame 17 to move upward, causing the fixing frame 17 to drive the rectangular block 36 to move upward, so that the rubber jacket 6 and the sealing strip 5 can be tightened and tightly attached to the outer surface of the front frame 3 and the rear frame 4.

[0041] The front housing 1 and the rear housing 2 are both fixedly installed with output pipes 18 on the left side of their outer surfaces, and the top of the output pipes 18 is fixedly connected with a first flange 19.

[0042] By setting up the output pipe 18 and the first flange 19, the operator can connect the water outlet pipe to the first flange 19 by bolts.

[0043] The front housing 1 is fixedly connected to the input pipe 20, and the input pipe 20 is fixedly mounted to the front of the second flange 21.

[0044] By setting up an inlet pipe 20 and a second flange 21, the operator can connect the inlet pipe to the second flange 21 with bolts.

[0045] The inner surfaces of both the front shell 1 and the rear shell 2 are fixedly equipped with reinforcing ribs 22, and the bottom of the inner surface of the rear shell 2 is provided with an external slag discharge hole 23.

[0046] By setting the external slag discharge hole 23, large particles that have settled inside the front shell 1 and the rear shell 2 can be discharged through the external slag discharge hole 23.

[0047] Among them, a protective sleeve 24 is movably connected between the front shell 1 and the rear shell 2, and an inner slag discharge hole 25 is opened at the bottom of the inner surface of the protective sleeve 24.

[0048] The front housing 1, the rear housing 2, and the sheath 24 are all made of silicon carbide-based composite material, which has high strength, high temperature stability, and chemical stability. The design of the sheath 24 can protect the front housing 1 and the rear housing 2, reducing the impact of slurry and the friction of particles on the front housing 1 and the rear housing 2.

[0049] Among them, an outer sealing plug 26 is movably sleeved inside the outer slag discharge hole 23, a connecting column 27 is fixedly connected to the inner end of the outer sealing plug 26, an inner sealing plug 28 is fixedly connected to the inner end of the connecting column 27, and the outer surface of the inner sealing plug 28 is movably sleeved with the inner surface of the inner slag discharge hole 25.

[0050] By setting the outer sealing plug 26 and the inner sealing plug 28, the outer slag discharge hole 23 and the inner slag discharge hole 25 can be sealed, and it is convenient for operators to discharge large-volume particles.

[0051] Among them, a fixed sleeve 29 is fixedly installed at the bottom of the back of the rear housing 2. A movable plate 30 is movably sleeved inside the fixed sleeve 29. A tightening bolt 31 is threaded inside the movable plate 30. The inner end of the tightening bolt 31 is movably connected to the outer surface of the outer sealing plug 26.

[0052] By setting the clamping bolt 31, the clamping bolt 31 can abut against the outer sealing plug 26 after being tightened, thereby making the outer sealing plug 26 and the inner sealing plug 28 stably installed inside the outer slag discharge hole 23 and the inner slag discharge hole 25.

[0053] The mounting bracket 32 ​​is fixedly connected to the outer surface of the fixed sleeve 29. A pull rod 33 is movably sleeved inside the mounting bracket 32. An insert rod 34 is fixedly connected to the inner end of the pull rod 33. The inner end of the insert rod 34 extends into the interior of the movable plate 30 and is movably sleeved with the inner wall of the movable plate 30. A spring 35 is fixedly connected to the outer end of the insert rod 34. The other end of the spring 35 is fixedly connected to the inner surface of the mounting bracket 32.

[0054] The operator can pull the lever 33 outward to cause the lever 33 to drive the insert 34 out of the interior of the movable plate 30, thereby releasing the fixing effect on the movable plate 30.

[0055] Working principle and usage process:

[0056] The operator merges the front housing 1 and the rear housing 2 together. By aligning the bolt holes 13 inside the front frame 3 and the rear frame 4, bolts can be used to connect the front housing 1 and the rear housing 2, and the front frame 3 and the rear frame 4 together. Then, the operator puts the connecting block 7 on the outer surface of the screw 8 and rotates the nut 10 to press and fix the connecting block 7. Then, the operator uses bolts to install the fixing plate 11 on the back of the rear frame 4, so that the fixing frame 17 is put on the outer surface of the rectangular block 36. Then, by rotating the adjusting bolt 15, the adjusting bolt 15 moves upward inside the mounting block 14, which in turn drives the fixing frame 17 to rise through the circular plate 16. This causes the fixing frame 17 to move the sealing strip 5 and the rubber sleeve 6 through the rectangular block 36, so that the sealing strip 5 and the rubber sleeve 6 are tightened and the sealing strip 5 is tightly attached to the outer surface of the front frame 3 and the rear frame 4. At this time, the operator can rotate the clamping bolt 12 to press the sealing strip 5 and the rubber sleeve 6, thus completing the installation of the sealing strip 5 and the rubber sleeve 6.

[0057] When it is necessary to discharge large-volume particles deposited at the bottom of the inner cavity of the sheath 24 and the rear housing 2, the clamping bolt 31 can be rotated to remove it from the interior of the movable plate 30, thereby releasing the pressure and fixation of the outer sealing plug 26. Then, the pull rod 33 is pulled upward, causing the pull rod 33 to drive the insertion rod 34 away from the interior of the movable plate 30, thereby releasing the fixing effect on the movable plate 30. This allows the movable plate 30 to be pulled out of the interior of the fixed sleeve 29. At this time, the operator can pull out the outer sealing plug 26, the connecting column 27 and the inner sealing plug 28, so that the large-volume particles can be discharged through the inner slag discharge hole 25 and the outer slag discharge hole 23.

[0058] After the large particles are discharged, the outer sealing plug 26 and the inner sealing plug 28 are inserted into the outer slag discharge hole 23 and the inner slag discharge hole 25 again. Then, the movable plate 30 is inserted into the fixed sleeve 29, so that the insert rod 34 is inserted into the movable plate 30, thereby fixing the movable plate 30. Then, the tightening bolt 31 is rotated so that the inner end of the tightening bolt 31 abuts against the outer surface of the outer sealing plug 26, thereby fixing the outer sealing plug 26 and the inner sealing plug 28, so that the outer sealing plug 26 and the inner sealing plug 28 can resist the impact of the slurry.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slurry pump volute with a new type of silicon carbide based composite material, comprising a front housing (1), characterized in that: The back of the front shell (1) is movably connected with the rear shell (2), the outer surface of the front shell (1) is fixedly sleeved with the front frame (3), the outer surface of the rear shell (2) is fixedly sleeved with the rear frame (4), the front frame (3) and the rear frame (4) are movably connected, the outer surfaces of the front frame (3) and the rear frame (4) are movably connected with the sealing rubber strip (5), the outer surface of the sealing rubber strip (5) is fixedly sleeved with the rubber sleeve (6), the top end of the rubber sleeve (6) is fixedly connected with the connecting block (7), the inside of the connecting block (7) is movably sleeved with the screw rod (8), the bottom end of the screw rod (8) is fixedly connected with the outer surface of the rear frame (4), the bottom of the screw rod (8) is movably connected with the outer surface of the front frame (3), the outer surface of the screw rod (8) is movably sleeved with the gasket (9) above the connecting block (7), the outer surface of the screw rod (8) is threadedly sleeved with the nut (10), the left side of the back of the rear frame (4) is fixedly connected with the fixed plate (11), the inside of the fixed plate (11) is threadedly sleeved with the compression bolt (12), the right end of the compression bolt (12) is movably connected with the outer surface of the rubber sleeve (6), and the interiors of the front frame (3) and the rear frame (4) are provided with bolt holes (13).

2. A slurry pump volute with a new type of silicon carbide based composite material as claimed in claim 1, wherein: The bottom of the left side of the fixed plate (11) is fixedly connected with the mounting block (14), the inside of the mounting block (14) is threadedly sleeved with the adjusting bolt (15), and the bottom of the adjusting bolt (15) is fixedly connected with the circular plate (16).

3. A slurry pump volute with a new type of silicon carbide based composite material as claimed in claim 2, wherein: The outer surface of the adjusting bolt (15) is movably sleeved with the fixed frame (17), the right side of the fixed frame (17) is movably connected with the outer surface of the rubber sleeve (6), the inside of the fixed frame (17) is movably sleeved with the rectangular block (36), and the right end of the rectangular block (36) is fixedly connected with the outer surface of the rubber sleeve (6).

4. A slurry pump volute with a new type of silicon carbide based composite material as claimed in claim 1, wherein: The left sides of the outer surfaces of the front shell (1) and the rear shell (2) are fixedly connected with output pipes (18), and the top of each output pipe (18) is fixedly connected with a first flange (19).

5. A slurry pump volute with a new type of silicon carbide based composite material as claimed in claim 1, wherein: The front surface of the front shell (1) is fixedly connected with an input pipe (20), and the front surface of the input pipe (20) is fixedly connected with a second flange (21).

6. A slurry pump volute with a new type of silicon carbide based composite material as claimed in claim 1, wherein: The inner surfaces of the front shell (1) and the rear shell (2) are fixedly connected with reinforcing ribs (22), and the bottom of the inner surface of the rear shell (2) is provided with an outer slag discharge hole (23).

7. A slurry pump volute with a new type of silicon carbide based composite material as claimed in claim 1, wherein: The front shell (1) and the rear shell (2) are movably connected with a sheath (24), and the bottom of the inner surface of the sheath (24) is provided with an inner slag discharge hole (25).

8. A slurry pump volute with a new type of silicon carbide based composite material as claimed in claim 6, wherein: The inside of the outer slag discharge hole (23) is movably sleeved with an outer sealing plug (26), the inner end of the outer sealing plug (26) is fixedly connected with a connecting column (27), the inner end of the connecting column (27) is fixedly connected with an inner sealing plug (28), and the outer surface of the inner sealing plug (28) is movably sleeved with the inner surface of the inner slag discharge hole (25).

9. A slurry pump volute with a new type of silicon carbide based composite material as claimed in claim 1, wherein: The bottom of the back of the rear shell (2) is fixedly provided with a fixed sleeve (29), the inside of the fixed sleeve (29) movably sleeved with a movable plate (30), the inside of the movable plate (30) threaded with a abutting bolt (31), the inner end of the abutting bolt (31) movably connected with the outer surface of the outer sealing plug (26).

10. A slurry pump volute with a novel silicon carbide based composite material as claimed in claim 9, wherein: The outer surface of the fixed sleeve (29) is fixedly connected with a mounting rack (32), the inside of the mounting rack (32) movably sleeved with a pull rod (33), the inner end of the pull rod (33) fixedly connected with a plug rod (34), the inner end of the plug rod (34) extending to the inside of the movable plate (30) and movably sleeved with the inner wall of the movable plate (30), the outer end of the plug rod (34) fixedly connected with a spring (35), the other end of the spring (35) fixedly connected with the inner surface of the mounting rack (32).

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