CN113446268B - Sleeve type pneumatic conveying slurry pump - Google Patents
Sleeve type pneumatic conveying slurry pump Download PDFInfo
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- CN113446268B CN113446268B CN202110673271.3A CN202110673271A CN113446268B CN 113446268 B CN113446268 B CN 113446268B CN 202110673271 A CN202110673271 A CN 202110673271A CN 113446268 B CN113446268 B CN 113446268B
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- sleeve
- slag
- pipe
- box
- inner sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
- F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
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- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention relates to a sleeve type pneumatic conveying slag slurry pump, and belongs to the technical field of blast furnace hydraulic slag flushing in the metallurgical industry. The technical proposal is as follows: the utility model provides a slag tap, including casing (1), outer tube (3), sleeve pipe (4), compressed air inlet (3-1) are arranged on slag notch (1-2) of casing (1) is vertical, and the upper portion of outer tube (3) is equipped with compressed air inlet (3-1), and the lower part of outer tube (3) is the bilayer structure that comprises inlayer and skin, and box (9) are equipped with box export (9-1), and jet pipe (7) and honeycomb duct (11) are located box (9) respectively, honeycomb duct (11) are the S type, and the lower extreme of jet pipe (7) is connected with sleeve pipe (4) in pump head (2) through middle takeover (5), and the export and the box export (9-1) of S type honeycomb duct (11) are arranged relatively. The beneficial effects of the invention are as follows: the conveying efficiency is high, the slag is not easy to be blocked by a hardening block at the bottom of the sedimentation tank, the failure rate is low, and the requirements of blast furnace hydraulic slag flushing can be met.
Description
Technical Field
The invention relates to a sleeve type pneumatic conveying slag slurry pump, and belongs to the technical field of blast furnace hydraulic slag flushing in the metallurgical industry.
Background
Referring to fig. 1, the backwater of the blast furnace hydraulic slag flushing and dewatering system still contains a certain amount of fine slag which is settled at the bottoms of a sedimentation tank and a purifying tank, and the fine slag is required to be conveyed to the dewatering system by a slag slurry pump for secondary dewatering. The mechanical slurry pump driven by the motor has the advantages of large steam, strong corrosiveness, severe working environment, extremely high failure rate of electric and mechanical equipment, incapability of meeting production requirements, small aperture of the impeller of the centrifugal slurry pump, and easy blockage of the impeller by the block slag generated at the bottom of the sedimentation tank, thereby influencing normal production.
Disclosure of Invention
The invention aims to provide a sleeve type pneumatic conveying slurry pump which has high conveying efficiency, is not easy to be blocked by a hardening block at the bottom of a sedimentation tank, has low failure rate, can meet the requirement of blast furnace hydraulic slag flushing, and solves the problems in the background art.
The technical scheme of the invention is as follows:
the utility model provides a sleeve type pneumatic conveying slurry pump, includes pump head, middle takeover and water conservancy diversion box assembly, the pump head contains casing, outer tube and interior sleeve pipe, and the casing is confined container, and the lower part of casing is equipped with into the slag notch, and the upper portion of casing is equipped with the slag notch, and the outer tube is vertical to be fixed on the slag notch of casing, and interior sleeve pipe and outer tube concentric arrangement, the upper portion of outer tube is equipped with compressed air inlet, and the lower part of outer tube is the bilayer structure of inlayer and skin constitution, and the inlayer external diameter of outer tube is less than the internal diameter of endotheca pipe, and the outer diameter of outer tube is greater than the external diameter of interior sleeve pipe;
the diversion box assembly comprises a jet pipe, a box body and a diversion pipe, wherein the box body is provided with a box body outlet, the jet pipe and the diversion pipe are respectively positioned in the box body, the diversion pipe is of an S shape, the lower end of the jet pipe is connected with an inner sleeve in a pump head through a middle connection pipe, the upper end of the jet pipe is oppositely arranged with the inlet of the S-shaped diversion pipe, and the outlet of the S-shaped diversion pipe is oppositely arranged with the box body outlet.
A compressed air channel is formed between the inner sleeve and the outer layer of the outer sleeve and between the inner sleeve and the inner layer of the outer sleeve.
The jet pipe and the guide pipe are fixed together through a fixed clamping plate.
The box outlet is positioned at the lower part of the box.
When the invention is used, the shell of the slurry pump is immersed in a sedimentation tank or a slag-water mixture of purified slag, compressed air generates a low-pressure area when rapidly flowing in the inner sleeve and the middle connecting pipe, and the slag-water mixture accumulated around the shell is conveyed to the diversion box body along the shell, the outer sleeve, the inner sleeve and the middle connecting pipe under the action of atmospheric pressure and is then output through the diversion pipe in the diversion box body.
The beneficial effects of the invention are as follows: the conveying efficiency is high, the slag is not easy to be blocked by a hardening block at the bottom of the sedimentation tank, the stability performance is good, the failure rate is about 3% lower than that of the traditional slag slurry pump, and the requirements of blast furnace hydraulic slag flushing can be met.
Drawings
FIG. 1 is a schematic diagram of a hydraulic slag flushing and slag returning and precipitating process of a blast furnace;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic diagram of a pump head;
FIG. 4 is a schematic view of an inner sleeve;
FIG. 5 is a front view of the outer sleeve;
FIG. 6 is a top view of the outer sleeve;
fig. 7 is a front view of the housing;
FIG. 8 is a top view of the housing;
FIG. 9 is a cross-sectional view of an intermediate nipple;
FIG. 10 is a cross-sectional view of the baffle box assembly;
FIG. 11 is a cross-sectional view of a jet tube;
FIG. 12 is a front view of a draft tube;
FIG. 13 is a side view of a draft tube;
fig. 14 is a front view of the lower cover;
FIG. 15 is a top view of the lower cover;
FIG. 16 is a front view of the case;
FIG. 17 is a top view of the case;
FIG. 18 is a front view of the upper cover plate;
FIG. 19 is a top plan view of the upper cover plate;
FIG. 20 is a front view of the stationary cleat;
FIG. 21 is a cross-sectional view of the fixing clip A-A;
in the figure: the device comprises a shell 1, a slag inlet 1-1, a slag outlet 1-2, a pump head 2, an outer sleeve 3, a compressed air inlet 3-1, an outer sleeve inner layer 3-2, an outer sleeve outer layer 3-3, an inner sleeve 4, an intermediate connecting pipe 5, a diversion box assembly 6, a jet pipe 7, a lower cover 8, a box 9, a box outlet 9-1, a fixed clamping plate 10, a jet pipe 11, an upper cover plate 12, a circulating tank 13, a purifying tank 14, a sedimentation tank 15, a dewatering system 16 and a granulating system 17.
Detailed Description
The invention is further illustrated by way of example with reference to the accompanying drawings.
Referring to fig. 2-21, a sleeve type pneumatic conveying slurry pump comprises a pump head 2, a middle connecting pipe 5 and a flow guide box body assembly 6, wherein the pump head 2 comprises a shell 1, an outer sleeve 3 and an inner sleeve 4, the shell 1 is a closed container, a slag inlet 1-1 is arranged at the lower part of the shell 1, a slag outlet 1-2 is arranged at the upper part of the shell 1, the outer sleeve 3 is vertically fixed on the slag outlet 1-2 of the shell 1, the inner sleeve 4 and the outer sleeve 3 are concentrically arranged, a compressed air inlet 3-1 is arranged at the upper part of the outer sleeve 3, the lower part of the outer sleeve 3 is of a double-layer structure formed by an inner layer and an outer layer, the outer diameter of the inner layer 3-2 of the outer sleeve is smaller than the inner diameter of the inner sleeve 4, and the inner diameter of the outer layer 3-3 of the outer sleeve is larger than the outer diameter of the inner sleeve 4;
the diversion box assembly 6 comprises a jet pipe 7, a box 9 and a diversion pipe 11, wherein the box 9 is provided with a box outlet 9-1, the jet pipe 7 and the diversion pipe 11 are respectively positioned in the box 9, the diversion pipe 11 is of an S shape, the lower end of the jet pipe 7 is connected with an inner sleeve 4 in the pump head 2 through an intermediate connection pipe 5, the upper end of the jet pipe 7 is oppositely arranged with the inlet of the S-shaped diversion pipe 11, and the outlet of the S-shaped diversion pipe 11 is oppositely arranged with the box outlet 9-1.
In this embodiment, referring to fig. 3-8, the pump head 2 is the primary component for inputting compressed air to generate a source of delivery motive energy. The pump head 2 is formed by welding a shell 1, an outer sleeve 3 and an inner sleeve 4 in a combined mode, and the main function of the shell 1 is that a certain space is formed for a slag water mixture to enter a pump body, so that the flow of the slag water mixture is facilitated.
The outer sleeve 3 and the inner sleeve 4 are combined to form a running track space of a compression space, as shown in fig. 3, arrows are in the flowing direction of compressed air, the compressed air is finally enabled to form a state of rapidly running upwards in the inner sleeve 4, low pressure is generated, and then the slag-water mixture is conveyed to a slag-water pump outlet by the action of atmospheric pressure.
Fig. 9 is a schematic diagram of an intermediate connection pipe, wherein the intermediate connection pipe 5 is arranged between the pump head 2 and the diversion box assembly 6 and at the outlet part of the diversion box assembly 6. The middle connecting pipe 5 can be provided with multiple sections according to the lifting height of the pump to the slag-water mixture and the horizontal conveying distance.
Referring to fig. 10-21, the diversion box assembly 6 is composed of a jet pipe 7, a lower cover body 8, a box body 9, a fixed clamping plate 10, a diversion pipe 11 and an upper cover plate 12, and has the main functions of receiving the slag-water mixture conveyed by the pump head 2, buffering the slag-water mixture and outputting the slag-water mixture from the outlet of the box body.
The specific working principle is as follows:
referring to fig. 2, in operation, the shell 1 is placed in the slag-water mixture, the flange (i.e. the compressed air inlet 3-1) on the left side of the outer sleeve 3 is led to compressed air, the compressed air runs downwards along the cavity between the outer sleeve layer 3-3 and the inner sleeve 4, when encountering the bottom of the outer sleeve 3, then runs upwards through the cavity between the inner sleeve 4 and the inner sleeve layer 3-2, and after entering the inner sleeve 4, the compressed air continues to run upwards rapidly. In the process of the rapid upward operation of the compressed air in the inner sleeve 4, the air pressure is rapidly reduced, the slag-water mixture outside the shell 1 rapidly enters the shell 1 from the slag inlet 1-1 at the bottom of the shell 1 under the action of the atmospheric pressure, the slag-water mixture continues to move upward through the inner sleeve 4 and the middle connecting pipe 5 under the action of the compressed air, enters the guide pipe 11 through the jet pipe 7 in the guide box assembly 6, and finally is jetted from the water outlet pipe at the left side of the guide box assembly 6. When the compressed air is cut off, the slag water mixture which is not conveyed out falls down along the center of the pipe, and under the action of the residual pressure of the compressed air, the slag water which falls into the cavities of the outer sleeve 3 and the inner sleeve 4 is purged completely, so that a foundation is laid for the next work.
The implementation effect is as follows: according to statistics, the failure rate is about 3% lower than that of the traditional slurry pump, and the economic benefit is 18.6 ten thousand yuan each year.
Claims (3)
1. The utility model provides a sleeve type pneumatic conveying sediment stuff pump which characterized in that: the novel high-pressure water pump comprises a pump head (2), a middle connecting pipe (5) and a diversion box body assembly (6), wherein the pump head (2) comprises a shell (1), an outer sleeve (3) and an inner sleeve (4), the shell (1) is a closed container, a slag inlet (1-1) is formed in the lower portion of the shell (1), a slag outlet (1-2) is formed in the upper portion of the shell (1), the outer sleeve (3) is vertically fixed on the slag outlet (1-2) of the shell (1), the inner sleeve (4) and the outer sleeve (3) are concentrically arranged, a compressed air inlet (3-1) is formed in the upper portion of the outer sleeve (3), the lower portion of the outer sleeve (3) is of a double-layer structure formed by an inner layer and an outer layer, the outer diameter of the inner sleeve (3-2) is smaller than the inner diameter of the inner sleeve (4), and the inner diameter of the outer sleeve (3-3) is larger than the outer diameter of the inner sleeve (4). Compressed air channels are formed between the inner sleeve (4) and the outer sleeve layer (3-3) and between the inner sleeve (4) and the inner sleeve layer (3-2);
the guide box assembly (6) comprises a jet pipe (7), a box body (9) and a guide pipe (11), wherein the box body (9) is provided with a box body outlet (9-1), the jet pipe (7) and the guide pipe (11) are respectively located in the box body (9), the guide pipe (11) is of an S shape, the lower end of the jet pipe (7) is connected with an inner sleeve (4) in the pump head (2) through an intermediate connecting pipe (5), the upper end of the jet pipe (7) is oppositely arranged with the inlet of the S-shaped guide pipe (11), and the outlet of the S-shaped guide pipe (11) is oppositely arranged with the box body outlet (9-1).
2. A telescopic pneumatic conveying slurry pump according to claim 1, wherein: the jet pipe (7) and the jet pipe (11) are fixed together through a fixed clamping plate (10).
3. A telescopic pneumatic conveying slurry pump according to claim 1, wherein: the box outlet (9-1) is positioned at the lower part of the box (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110673271.3A CN113446268B (en) | 2021-06-17 | 2021-06-17 | Sleeve type pneumatic conveying slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110673271.3A CN113446268B (en) | 2021-06-17 | 2021-06-17 | Sleeve type pneumatic conveying slurry pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113446268A CN113446268A (en) | 2021-09-28 |
| CN113446268B true CN113446268B (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110673271.3A Active CN113446268B (en) | 2021-06-17 | 2021-06-17 | Sleeve type pneumatic conveying slurry pump |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB165400A (en) * | 1920-06-24 | 1922-01-19 | Bbc Brown Boveri & Cie | Improvements in mercury vapour ejector pumps for high vacua |
| GB1018154A (en) * | 1963-05-15 | 1966-01-26 | Bergstrom Otto Theodore | Air and water jet utilizing suction lifts for the elevation of submerged solids |
| GB8902644D0 (en) * | 1989-02-07 | 1989-03-30 | Lynch Stanley J | Improvements in or relating to pumps |
| CN2714863Y (en) * | 2004-04-30 | 2005-08-03 | 天津市隆安冶金机械厂 | Pneumatic lift pump |
| CN201221501Y (en) * | 2008-07-14 | 2009-04-15 | 中冶东方工程技术有限公司 | Pneumatic hoisting device |
| CN107559244A (en) * | 2017-09-22 | 2018-01-09 | 普耳机械（上海）有限公司 | A kind of vapour-pressure type water plug instead of conventional water pump |
| CN111852963B (en) * | 2020-07-22 | 2022-04-12 | 广东韶钢松山股份有限公司 | Sludge pipeline pneumatic lifting device and sludge treatment system |
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2021
- 2021-06-17 CN CN202110673271.3A patent/CN113446268B/en active Active
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