CN115228255B - Side-entering stirrer sealing device - Google Patents
Side-entering stirrer sealing device Download PDFInfo
- Publication number
- CN115228255B CN115228255B CN202210933145.1A CN202210933145A CN115228255B CN 115228255 B CN115228255 B CN 115228255B CN 202210933145 A CN202210933145 A CN 202210933145A CN 115228255 B CN115228255 B CN 115228255B
- Authority
- CN
- China
- Prior art keywords
- sealing
- container
- rotating shaft
- cylinder
- sealing cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/73—After-treatment of removed components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
- B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
- B01F27/704—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with stirrers facing each other, i.e. supported by opposite walls of the receptacle
Abstract
The invention provides a side-entering stirrer sealing device which comprises a rotating shaft penetrating through the side wall of a container, wherein one end of the rotating shaft, which is positioned outside the container, is connected with a power assembly, and one end of the rotating shaft, which is positioned in the container, is provided with a stirring blade assembly, and further comprises a sealing cylinder and a sealing sleeve; the sealing cylinder is sleeved outside the container at a section of the rotating shaft, one end of the sealing cylinder is mounted on the container in a sealing fit manner, the other end of the sealing cylinder is connected with the rotating shaft in a rotating sealing fit manner, a temporary storage cavity is formed between the sealing cylinder and the rotating shaft, an air inlet pipe communicated with the temporary storage cavity is connected to the sealing cylinder, and a high-pressure sealing air source is connected to the air inlet pipe; the sealing sleeve is sleeved on a section of the rotating shaft, which is positioned in the container, and is in clearance fit with the rotating shaft, one end of the sealing sleeve, which is close to the sealing cylinder, is connected with the sealing cylinder, and the sealing sleeve is communicated with the temporary storage cavity. The invention fully utilizes the existing conditions on site without any abrasion under the condition of not changing the main structure of the side-entering stirrer, and solves the problem of sealing the rotating shaft of the side-entering stirrer at one time.
Description
Technical Field
The invention relates to the technical field of side-entering stirrers, in particular to a sealing device of a side-entering stirrer.
Background
The side-entering stirrer is mainly applied to flue gas wet desulfurization projects of large-scale coal-fired equipment such as thermal power plants and steel plants, is arranged on an absorption tower and an AFT tower for wet flue gas desulfurization, is arranged to prevent particles in desulfurization slurry from precipitating and agglomerating, improves the effect of fully mixing oxidation wind and slurry, and can play a role in efficient oxidation reaction. The side-feeding stirrer is widely applied to biological fermentation engineering and is arranged on a large-scale fermentation tank body, so that the purpose of preventing fermentation material from precipitating and fully mixing pure sterile air with the fermentation material is achieved, the oxygen content in the fermentation material is improved, and the vitality of fermentation strains is further improved.
The existing side-entering stirrer adopts mechanical sealing on the rotating shaft, and the defects of the mechanical sealing are found as follows after long-term operation on site:
1. the side-entering stirrer has heavy load, thick shaft diameter and high mechanical seal cost, one set of mechanical seal cost reaches more than ten yuan, and one production line needs more than ten side-entering stirrers;
2. because the slurry contains a large amount of fine particles and the pH value of the slurry is acidic, the sealing movable ring and the sealing stationary ring of the mechanical seal are easy to wear and corrode after continuous operation, the service life period is short, and the speed reducer of the side-entering stirrer needs to be integrally disassembled when the mechanical seal is replaced, so that the maintenance workload is high;
3. the mechanical seal can not be sealed absolutely, so that the phenomenon of slurry leakage is easy to happen frequently, potential accident hazards are caused, and standardized construction of production enterprises is influenced;
4. after mechanical seal's damage, if the bowl form sealed annex on the (mixing) shaft damages, can not static seal, must wait for the main equipment to shut down and discharge the thick liquid and just can change, can not in time change, influence production index, cause the unplanned shut down to stop production easily.
Disclosure of Invention
Based on the technical problems in the background technology, the invention provides a sealing device of a side-entering stirrer.
The invention provides a side-entering stirrer sealing device which comprises a rotating shaft penetrating through the side wall of a container, wherein one end of the rotating shaft, which is positioned outside the container, is connected with a power assembly, and one end of the rotating shaft, which is positioned in the container, is provided with a stirring blade assembly, and further comprises a sealing cylinder and a sealing sleeve; the sealing cylinder is sleeved outside the container at a section of the rotating shaft, one end of the sealing cylinder is mounted on the container in a sealing fit manner, the other end of the sealing cylinder is connected with the rotating shaft in a rotating sealing fit manner, a temporary storage cavity is formed between the sealing cylinder and the rotating shaft, an air inlet pipe communicated with the temporary storage cavity is connected to the sealing cylinder, and a high-pressure sealing air source is connected to the air inlet pipe; the sealing sleeve is sleeved on a section of the rotating shaft, which is positioned in the container, and is in clearance fit with the rotating shaft, one end of the sealing sleeve, which is close to the sealing cylinder, is connected with the sealing cylinder, and the sealing sleeve is communicated with the temporary storage cavity.
Preferably, the high-pressure sealed air source comprises an oxidation fan and an oxidation air header pipe connected with the oxidation fan, an air supply branch pipe communicated with the oxidation air header pipe and provided with an air outlet towards the stirring blade assembly is arranged in the container, the air inlet pipe is communicated with the oxidation air header pipe, and a first check valve and a first stop valve are arranged on the air inlet pipe.
Preferably, the bottom of the sealing cylinder is connected with a slurry discharge pipe communicated with the temporary storage cavity, and the slurry discharge pipe is provided with a drain valve and a second stop valve.
Preferably, the slurry collecting device further comprises a collecting ring pipe arranged outside the container, one end of the slurry discharging pipe, which is far away from the sealing cylinder, is connected with the collecting ring pipe, and a second check valve is arranged on the collecting ring pipe.
Preferably, the device further comprises a cleaning water main pipe arranged outside the container, the sealing cylinder is connected with a cleaning water branch pipe communicated with the temporary storage cavity, the cleaning water branch pipe is communicated with the cleaning water main pipe, and a third stop valve is arranged on the cleaning water branch pipe.
Preferably, the sealing cylinder is provided with a perspective mirror and a pressure gauge.
Preferably, the outer wall of the container is provided with a mounting seat, the mounting seat is provided with a through hole communicated with the interior of the container, one end, close to the container, of the sealing cylinder is connected with the mounting seat through a flange, and the rotating shaft penetrates through the through hole to extend into the container and is in clearance fit with the mounting seat; one end of the sealing sleeve close to the sealing cylinder extends into the through hole and is in sealing connection with the flange through the sealing plate.
Preferably, one side of the sealing cylinder, which is far away from the end plate, is provided with a second flange, the second flange is connected with the first flange through a connecting frame, and the power assembly is arranged on the second flange.
Preferably, the rotating shaft obliquely penetrates through the container, the height of one end of the rotating shaft, provided with the stirring blade assembly, is lower than that of one end of the rotating shaft, provided with the power assembly, the angle range formed between the rotating shaft and the side wall of the container is 7-10 degrees, and the sealing sleeve and the rotating shaft are coaxially arranged.
Preferably, one end of the sealing cylinder, which is far away from the container, is provided with a sealing seat, sealing is realized between the sealing seat and the rotating shaft through a PTFE sealing ring, and the outer side of the sealing seat is connected with a sealing gland through a bolt.
The sealing device of the side-entering stirrer provided by the invention has the following advantages:
(1) The high-pressure sealing air source supplies high-pressure air to the temporary storage cavity of the sealing cylinder through the air inlet pipe, the high-pressure air enters the sealing sleeve, sealing is realized through the pressure of the high-pressure air, and leakage of the desulfurization slurry is blocked;
(2) In order to prevent the occurrence of sedimentation and agglomeration of desulfurization slurry or materials in a biological fermentation tank, the installation position of a rotating shaft has an axial inclination of 7-10 ℃, the end of a stirring blade assembly is low, the end of a power assembly is high, the slurry generates vortex impact on the bottom of the tower under the rotating thrust of the stirring blade assembly, and the slurry at the bottom of the tower is always in a flowing state, so that the purpose that the slurry does not sediment and agglomerate is achieved;
(3) The axial inclination of 7-10 degrees of the rotating shaft is fully utilized, the horizontal line of the end opening position of the extension length of the sealing sleeve, which is in contact with the slurry, is lower than the horizontal line of the lower end of the first through hole, so that the lowest slurry level entering the sealing sleeve is ensured to be at the lower end of the first through hole, the elliptical level formed by the slurry in the sealing sleeve is uniformly stressed, the slurry is free from an outlet, and the slurry in the sealing sleeve is pushed back into the container under the action of the oxidizing wind pressure;
(4) The rotary shaft and the sealing cylinder are sealed by the PTFE sealing ring, the PTFE sealing ring has self-lubricating property, a lip-type sealing surface has extremely low friction coefficient, the lip is contracted by friction heat during operation, the sealing lip can be tightly held on the rotary shaft, the abrasion to the rotary shaft is extremely small, the sealing pressure is high, the pressure of 1.5MPa can be borne, the sealing pressure is tens of times of that of a conventional sealing ring, even if the sealing ring is damaged during later operation, only pressure air is leaked, no pollution is caused to the field environment, and the field sealing requirement can be completely met;
(5) The first check valve and the first stop valve are arranged on the air inlet pipe to prevent the fault of the oxidation fan, so that desulfurization slurry flows into the air inlet pipe under the condition of pressure loss of oxidation wind, and meanwhile, the temporary pressure maintaining function is realized under the condition of pressure loss of pressure air, so that the airtight pressure can be maintained, and the maintenance time is strived for equipment maintenance;
(6) Through the design of the slurry discharge pipe, the leakage accident of slurry is thoroughly avoided, and the method has important significance for improving the field environment and safety production; the drain valve and the second stop valve are arranged on the slurry discharge pipe to stop the discharge of pressure air and keep the pressure of sealing air, when slurry leaks, the valve core of the drain valve can be automatically opened under the buoyancy of liquid to discharge desulfurization slurry to an accident slurry pool;
(7) The sealing cylinder is provided with a perspective mirror for daily operation observation window, and is provided with a pressure gauge, so that whether the oxidation wind pressure is normal or not can be checked regularly during operation, and the found problems can be treated in time;
(8) Through setting up wash water main line and wash water distributor, install the third and cut off the valve on the wash water distributor, when the perspective view mirror is fuzzy or have thick liquid to leak, open the third and cut off the valve and drain and wash, also can open the valve regularly and wash, dilute the inside thick liquid concentration of sealed sleeve pipe, clean sealed sleeve pipe is inside.
Drawings
FIG. 1 is a schematic diagram of a side-entry mixer seal according to the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is a partial block diagram of a side entry mixer seal assembly according to the present invention;
FIG. 5 is a schematic view of the end plate of a side entry mixer seal according to the present invention;
FIG. 6 is a schematic view of a sealing cylinder in a side-entry mixer sealing device according to the present invention;
fig. 7 is an assembly view of a PTFE seal ring in a side-entry mixer seal according to the present invention.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Example 1
The invention is used for the wet desulfurization process flow, is arranged on an absorption tower and an AFT tower, and a set of wet desulfurization device needs a plurality of side-entering stirrers which are uniformly arranged at the periphery of each tower in a uniform height.
Referring to fig. 1-7, the invention provides a side-entering stirrer sealing device, which comprises a rotating shaft 1 penetrating through the side wall of a container 2 (an absorption tower or an AFT tower), wherein one end of the rotating shaft 1 positioned outside the container 2 is connected with a power assembly 3, and one end of the rotating shaft 1 positioned in the container 2 is provided with a stirring blade assembly 4, and further comprises a sealing cylinder 5 and a sealing sleeve 6; wherein:
the sealing cylinder 5 is sleeved outside the rotating shaft 1 and is positioned at a section outside the container 2, one end of the sealing cylinder 5 is installed on the container 2 in a sealing fit manner, the other end of the sealing cylinder is connected with the rotating shaft 1 in a rotating sealing fit manner, a temporary storage cavity is formed between the sealing cylinder 5 and the rotating shaft 1, an air inlet pipe 7 communicated with the temporary storage cavity is connected to the sealing cylinder 5, and a high-pressure sealing air source is connected to the air inlet pipe 7.
The sealing sleeve 6 is sleeved on the rotating shaft 1, is positioned at one section of the container 2 and is in clearance fit with the rotating shaft 1, one end, close to the sealing cylinder 5, of the sealing sleeve 6 is connected with the sealing cylinder 5, and the sealing sleeve 6 is communicated with the temporary storage cavity.
The high-pressure sealed air source of the embodiment utilizes an oxidation fan in the wet desulfurization process flow and an oxidation air header pipe 8 connected with the oxidation fan, the oxidation air header pipe 8 is annularly arranged outside a container 2, an air supply branch pipe 9 which is communicated with the oxidation air header pipe 8 and has an air outlet facing a stirring blade assembly 4 is arranged in the container 2, an air inlet pipe 7 of each side-entering stirrer sealing device is communicated with the oxidation air header pipe 8, and a first check valve and a first stop valve are arranged on the air inlet pipe 7.
In this embodiment, under the high-speed operation of the oxidation blower, the pressure air is sent to the position above the stirring blade assembly 4 in the tower, the power assembly 3 drives the rotation shaft 1 to rotate, the rotation shaft 1 drives the stirring blade assembly 4 to rotate, and under the rotation drive of the stirring blade assembly 4, the pressure air and the desulfurization slurry are stirred and mixed to perform an oxidation reaction on the desulfurization slurry, where the connection modes of the power assembly 3, the stirring blade assembly 4, the power assembly 3 and the stirring blade assembly 4 and the rotation shaft 1 are all in the prior art and are not repeated; the oxidation wind air in the oxidation wind main pipe 8 enters the temporary storage cavity of the sealing cylinder 5 through the air inlet pipe 7 and enters the sealing sleeve 6, sealing is realized through the pressure of the oxidation wind air, the leakage of desulfurization slurry is blocked, the oxidation wind pressure air is used as the rotary shaft 1 of the side-entering stirrer for sealing, the main structure is not affected, no abrasion is caused under the condition of fully utilizing the existing equipment process conditions on site, and the expensive cost for purchasing mechanical sealing and the equipment maintenance cost are saved; meanwhile, oxidized air is input to the rear side of the center of the stirring blade assembly 4 through the sealing sleeve 6, under the rotary thrust of the stirring blade assembly 4, the slurry flows forwards, the pressure at the rear end of the stirring blade assembly 4 can be reduced, sucked pressure air is mixed with the slurry, and after the stirring blade assembly 4 rotates and is stirred, the air content in the slurry is more uniform, so that the oxygen content in the slurry is more favorably and uniformly improved. The first check valve and the first stop valve are arranged on the air inlet pipe 7, so that the fault of the oxidation fan is prevented, the desulfurization slurry flows into the air inlet pipe 7 under the condition of pressure loss of oxidation air, and meanwhile, the temporary pressure maintaining function is also realized under the condition of pressure loss of pressure air, the airtight pressure can be maintained, and the maintenance time is strived for equipment maintenance.
In this embodiment, the outer diameter of the seal cartridge 5 is maximized without affecting the mounting position. The inner diameter of the seal sleeve 6 is preferably minimized without contact friction with the rotary shaft 1.
In this embodiment, as shown in fig. 2-7, an installation seat 15 is provided on the outer wall of the container 2, a through hole is provided on the installation seat 15, which is communicated with the interior of the container 2, one end of the sealing cylinder 5, which is close to the container 2, is connected with the installation seat 15 through a first flange 16, and the rotating shaft 1 passes through the through hole, extends into the container 2 and is in clearance fit with the installation seat 15; one end of the sealing sleeve 6, which is close to the sealing cylinder 5, extends into the through hole and is in sealing connection with the first flange 16 through the sealing plate 17, and the sealing sleeve 6 is communicated with the temporary storage cavity. The sealing cylinder 5 is provided with a sealing seat 20 at one end far away from the container 2, sealing is realized between the sealing seat 20 and the rotating shaft 1 through a PTFE sealing ring 22, and a sealing gland 21 is connected to the outer side of the sealing seat 20 through bolts. The sealing cylinder 5 is provided with a second flange 18 on the side far away from the first flange 16, the second flange 18 is connected with the first flange 16 through a connecting frame 19, and the power assembly 3 is mounted on the second flange 18.
The rotary shaft 1 and the sealing cylinder 5 are sealed by the PTFE sealing ring 22, the PTFE sealing ring 22 has self-lubricating property, a lip-type sealing surface has extremely low friction coefficient, the lip is contracted by friction heat during operation, the sealing lip can be tightly held on the rotary shaft 1, the abrasion to the rotary shaft 1 is extremely small, the sealing pressure is high, the pressure can be borne by 1.5MPa, the sealing pressure is tens times of that of a conventional sealing ring, even if the later operation is damaged, only pressure air is leaked, no pollution is caused to the field environment, and the field sealing requirement can be completely met.
Further, as shown in fig. 1 to 4, in order to prevent the occurrence of the particle precipitation agglomeration phenomenon in the desulfurization slurry, the rotation shaft 1 is inclined to penetrate the vessel 2 and the height of the end of the rotation shaft 1 provided with the stirring blade assembly 4 is lower than the height of the end thereof provided with the power assembly 3, the angle formed between the rotation shaft 1 and the side wall of the vessel 2 is in the range of 7-10 degrees, and the sealing sleeve 6 is coaxially arranged with the rotation shaft 1. The slurry is subjected to vortex impact on the bottom of the tower under the rotary thrust of the stirring blade assembly 4, and the slurry at the bottom of the tower is always in a flowing state, so that the purpose that the slurry is not precipitated and agglomerated is achieved; the axial inclination of 7-10 degrees is fully utilized, the horizontal line of the end opening position of the extension length of the sealing sleeve 6, which is in contact with the slurry, is lower than the horizontal line of the lower end of the first through hole, so that the lowest slurry level entering the sealing sleeve is ensured to be at the lower end of the first through hole, the elliptical level formed by the slurry in the sealing sleeve is uniformly stressed, the slurry is free from leakage outlet, and the slurry in the sealing sleeve 6 is pushed back into the container 2 under the action of oxidizing wind pressure.
Further, as shown in fig. 1-4, the bottom of the sealing cylinder 5 is connected with a slurry discharge pipe 10 communicated with the temporary storage cavity, and a drain valve and a second stop valve are arranged on the slurry discharge pipe 10. And a collecting ring pipe 11 which is arranged outside the container 2 in a ring shape, and one end of the slurry discharging pipe 10, which is far away from the sealing cylinder 5, is connected with the collecting ring pipe 11. Through the design of the slurry discharge pipe 10, the leakage accident of slurry is thoroughly avoided, and the method has important significance for improving the field environment and safety production; the drain valve and the second stop valve are installed on the slurry discharge pipe 10 to stop the discharge of the pressure air and maintain the pressure of the sealing air, when the slurry leaks, the valve core of the drain valve can be automatically opened under the buoyancy of the liquid, and the discharged desulfurization slurry is discharged to an accident slurry pool through the collecting ring pipe 11.
Further, as shown in fig. 1-4, the device further comprises a cleaning water main pipe 12 annularly arranged outside the container 2, a cleaning water branch pipe 13 communicated with the temporary storage cavity is connected to the sealing cylinder 5, the cleaning water branch pipe 13 is communicated with the cleaning water main pipe 12, and a third stop valve is arranged on the cleaning water branch pipe 13. The seal cylinder 5 is provided with a perspective mirror 22 and a pressure gauge 14. By arranging the cleaning water main pipe 12 and the cleaning water split pipe 13, a third stop valve is arranged on the cleaning water split pipe 13, when the transparent mirror 22 is fuzzy or slurry leaks, the third stop valve is opened to drain water for flushing, and the cleaning can be carried out by periodically opening the valve to dilute the slurry concentration in the sealing sleeve and clean the inside of the sealing sleeve. The sealing cylinder 5 is provided with a perspective mirror 22 for daily operation observation window, and the sealing cylinder 5 is provided with a pressure gauge 14 for periodically checking whether the oxidation wind pressure is normal or not in operation, so that the problem can be timely treated.
Example two
The invention is used for biological fermentation engineering, is arranged on a biological fermentation tank, and one set of biological fermentation tank needs a plurality of side-entering stirrers which are uniformly arranged at the periphery of the fermentation tank at uniform height.
Referring to fig. 1-7, the present invention provides a side-entry mixer sealing device, which is different from the embodiment in that: sterile pressure air is used as a high-pressure sealing air source, is introduced into the air inlet pipe 7 through a pipeline, is sent into the fermentation tank through the sealing sleeve 6, and is uniformly mixed with fermentation materials for oxygenation;
also differing from the embodiment is that the collecting loop 22 is connected to the inlet of the fermenter slurry circulating pump, by which the leaked fermentation slurry is re-fed into the fermenter. In order to prevent the fermentation slurry from flowing back into the temporary storage cavity of the sealing cylinder 5 due to the stop of the circulating pump, a second check valve is additionally arranged on the collecting ring pipe 11.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The side-entering stirrer sealing device comprises a rotating shaft (1) penetrating through the side wall of a container (2), wherein one end of the rotating shaft (1) positioned outside the container (2) is connected with a power assembly (3), and one end of the rotating shaft (1) positioned in the container (2) is provided with a stirring blade assembly (4), and the side-entering stirrer sealing device is characterized by further comprising a sealing cylinder (5) and a sealing sleeve (6); the rotary shaft (1) is sleeved with the sealing cylinder (5), one end of the sealing cylinder (5) is mounted on the container (2) in a sealing fit manner, the other end of the sealing cylinder is connected with the rotary shaft (1) in a rotating sealing fit manner, a temporary storage cavity is formed between the sealing cylinder (5) and the rotary shaft (1), an air inlet pipe (7) communicated with the temporary storage cavity is connected to the sealing cylinder (5), and a high-pressure sealing air source is connected to the air inlet pipe (7); the sealing sleeve (6) is sleeved on the rotating shaft (1) at a section in the container (2) and is in clearance fit with the rotating shaft (1), one end, close to the sealing cylinder (5), of the sealing sleeve (6) is connected with the sealing cylinder (5), and the sealing sleeve (6) is communicated with the temporary storage cavity; the rotating shaft (1) obliquely penetrates through the container (2), the height of one end of the rotating shaft (1) provided with the stirring blade assembly (4) is lower than the height of one end of the rotating shaft provided with the power assembly (3), and the sealing sleeve (6) and the rotating shaft (1) are coaxially arranged;
the high-pressure sealed air source comprises an oxidation fan and an oxidation air header pipe (8) connected with the oxidation fan, an air supply branch pipe (9) communicated with the oxidation air header pipe (8) and provided with an air outlet facing the stirring blade assembly (4) is arranged in the container (2), the air inlet pipe (7) is communicated with the oxidation air header pipe (8), and a first check valve and a first stop valve are arranged on the air inlet pipe;
the oxidation wind air is input to the center rear side position of the stirring blade assembly (4) through the sealing sleeve (6), under the rotary thrust of the stirring blade assembly (4), the slurry flows forwards, the pressure at the rear end of the stirring blade assembly (4) can be reduced, the sucked pressure air is mixed with the slurry, and the air content in the slurry is more uniform after the stirring blade assembly (4) rotates and stirs.
2. The side-entering stirrer sealing device according to claim 1, wherein the bottom of the sealing cylinder (5) is connected with a slurry discharge pipe (10) communicated with the temporary storage cavity, and a drain valve and a second stop valve are arranged on the slurry discharge pipe (10).
3. A side entry mixer sealing arrangement according to claim 2, further comprising a collecting collar (11) arranged outside the vessel (2), the slurry outlet pipe (10) being connected to the collecting collar (11) at its end remote from the sealing cylinder (5), the collecting collar (11) being provided with a second non-return valve.
4. A side entry mixer sealing arrangement according to any one of claims 1-2, further comprising a wash water main (12) arranged outside the vessel (2), the sealing drum (5) being connected with a wash water pipe (13) communicating with the temporary storage chamber, the wash water pipe (13) communicating with the wash water main (12) and the wash water pipe (13) being provided with a third shut-off valve.
5. Side-entry mixer sealing arrangement according to claim 4, characterized in that the sealing cylinder (5) is provided with a sight glass (22) and a pressure gauge (14).
6. The side-entry mixer sealing device according to any one of claims 1-2, characterized in that the outer wall of the container (2) is provided with a mounting seat (15) and the mounting seat (15) is provided with a through hole communicating with the interior of the container, the sealing cylinder (5) is connected with the mounting seat (15) through a first flange (16) near one end of the container (2), and the rotating shaft (1) extends into the container (2) through the through hole and is in clearance fit with the mounting seat (15); one end of the sealing sleeve (6) close to the sealing cylinder (5) extends into the through hole and is in sealing connection with the first flange (16) through the sealing plate (17).
7. A side entry mixer sealing arrangement according to claim 6, characterized in that the sealing cylinder (5) is provided with a second flange (18) on the side facing away from the first flange (16), the second flange (18) being connected to the first flange (16) by means of a connecting bracket (19), and the power assembly (3) being mounted on the second flange (18).
8. A side entry mixer sealing arrangement according to any one of claims 1-2, characterized in that the angle formed between the rotation axis (1) and the side wall of the container (2) is in the range of 7-10 degrees.
9. Side-entry stirrer sealing arrangement according to any of claims 1-2, characterized in that the end of the sealing cylinder (5) remote from the container (2) is provided with a sealing seat (20), the sealing between the sealing seat (20) and the rotating shaft (1) is achieved by means of a PTFE sealing ring (22), and the outside of the sealing seat (20) is connected with a sealing gland (21) by means of bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210933145.1A CN115228255B (en) | 2022-08-04 | 2022-08-04 | Side-entering stirrer sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210933145.1A CN115228255B (en) | 2022-08-04 | 2022-08-04 | Side-entering stirrer sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115228255A CN115228255A (en) | 2022-10-25 |
| CN115228255B true CN115228255B (en) | 2023-09-15 |
Family
ID=83679461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210933145.1A Active CN115228255B (en) | 2022-08-04 | 2022-08-04 | Side-entering stirrer sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115228255B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117443175B (en) * | 2023-11-22 | 2024-04-16 | 安徽雨辰机电制造有限公司 | Desulfurization thick liquid does not have stirring and prevents deposiing device |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007239933A (en) * | 2006-03-10 | 2007-09-20 | Agc Seimi Chemical Co Ltd | Shaft seal device for powder processing device |
| DE102008025508A1 (en) * | 2008-05-28 | 2009-12-03 | Sartorius Stedim Biotech Gmbh | mixing system |
| CN201627073U (en) * | 2010-03-26 | 2010-11-10 | 恒天重工股份有限公司 | Sizing roller air-pressure type sealing device |
| CN102154533A (en) * | 2011-05-09 | 2011-08-17 | 武汉钢铁(集团)公司 | Jet stirrer for mechanical stirring and desulfurizing of molten iron |
| CN103706293A (en) * | 2013-12-30 | 2014-04-09 | 浙江迦南科技股份有限公司 | Wet mixing granulator with stirring paddle sealing structure in-place cleaning function |
| CN205055939U (en) * | 2015-09-18 | 2016-03-02 | 甘肃蓝科石化高新装备股份有限公司 | A protection device for side direction agitator is sealed |
| CN106838331A (en) * | 2017-03-30 | 2017-06-13 | 四川高博环保工程有限公司 | Agitating shaft gas blowing seal structure in a kind of tank for sludge hydrolytic processing equipment |
| CN107152463A (en) * | 2017-06-26 | 2017-09-12 | 江苏凯宫隧道机械有限公司 | Bearing divergence type slip casting bearing package is put |
| CN207227422U (en) * | 2017-08-09 | 2018-04-13 | 江苏元洲生物工程有限公司 | A kind of solid-state fermentation tank axle center inlet duct |
| CN208018410U (en) * | 2018-02-13 | 2018-10-30 | 潍坊瑞通复合管道科技有限公司 | Ceramet composite stirrer and wet method fume desulfurizing system |
| CN208852826U (en) * | 2018-06-21 | 2019-05-14 | 重庆天旗实业有限公司 | For sealing the frame type stirring vane belt device of rubber base stirring |
| CN209155579U (en) * | 2018-08-08 | 2019-07-26 | 天津市合润科技有限责任公司 | Gas seal stirrer |
| CN111482103A (en) * | 2020-04-17 | 2020-08-04 | 天津市合润科技有限责任公司 | Side-feeding stirrer for biological fermentation tank |
| CN112524253A (en) * | 2020-11-29 | 2021-03-19 | 山东正铭流体控制设备有限公司 | Mechanical sealing device with heating and pneumatic stirring functions |
| CN212999405U (en) * | 2020-04-17 | 2021-04-20 | 天津市合润科技有限责任公司 | Side-feeding stirrer for biological fermentation tank |
| CN215567942U (en) * | 2021-03-26 | 2022-01-18 | 史震伟 | Stirrer sealing device for wet limestone desulfurization tower |
| CN216879130U (en) * | 2022-02-26 | 2022-07-05 | 浙江迦南科技股份有限公司 | A mixing system for having stifled performance wet process mixing granulator that explodes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3741454B1 (en) * | 2019-05-22 | 2023-02-22 | Sulzer Management AG | A rotary machine for acting on a process fluid |
-
2022
- 2022-08-04 CN CN202210933145.1A patent/CN115228255B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007239933A (en) * | 2006-03-10 | 2007-09-20 | Agc Seimi Chemical Co Ltd | Shaft seal device for powder processing device |
| DE102008025508A1 (en) * | 2008-05-28 | 2009-12-03 | Sartorius Stedim Biotech Gmbh | mixing system |
| CN201627073U (en) * | 2010-03-26 | 2010-11-10 | 恒天重工股份有限公司 | Sizing roller air-pressure type sealing device |
| CN102154533A (en) * | 2011-05-09 | 2011-08-17 | 武汉钢铁(集团)公司 | Jet stirrer for mechanical stirring and desulfurizing of molten iron |
| CN103706293A (en) * | 2013-12-30 | 2014-04-09 | 浙江迦南科技股份有限公司 | Wet mixing granulator with stirring paddle sealing structure in-place cleaning function |
| CN205055939U (en) * | 2015-09-18 | 2016-03-02 | 甘肃蓝科石化高新装备股份有限公司 | A protection device for side direction agitator is sealed |
| CN106838331A (en) * | 2017-03-30 | 2017-06-13 | 四川高博环保工程有限公司 | Agitating shaft gas blowing seal structure in a kind of tank for sludge hydrolytic processing equipment |
| CN107152463A (en) * | 2017-06-26 | 2017-09-12 | 江苏凯宫隧道机械有限公司 | Bearing divergence type slip casting bearing package is put |
| CN207227422U (en) * | 2017-08-09 | 2018-04-13 | 江苏元洲生物工程有限公司 | A kind of solid-state fermentation tank axle center inlet duct |
| CN208018410U (en) * | 2018-02-13 | 2018-10-30 | 潍坊瑞通复合管道科技有限公司 | Ceramet composite stirrer and wet method fume desulfurizing system |
| CN208852826U (en) * | 2018-06-21 | 2019-05-14 | 重庆天旗实业有限公司 | For sealing the frame type stirring vane belt device of rubber base stirring |
| CN209155579U (en) * | 2018-08-08 | 2019-07-26 | 天津市合润科技有限责任公司 | Gas seal stirrer |
| CN111482103A (en) * | 2020-04-17 | 2020-08-04 | 天津市合润科技有限责任公司 | Side-feeding stirrer for biological fermentation tank |
| CN212999405U (en) * | 2020-04-17 | 2021-04-20 | 天津市合润科技有限责任公司 | Side-feeding stirrer for biological fermentation tank |
| CN112524253A (en) * | 2020-11-29 | 2021-03-19 | 山东正铭流体控制设备有限公司 | Mechanical sealing device with heating and pneumatic stirring functions |
| CN215567942U (en) * | 2021-03-26 | 2022-01-18 | 史震伟 | Stirrer sealing device for wet limestone desulfurization tower |
| CN216879130U (en) * | 2022-02-26 | 2022-07-05 | 浙江迦南科技股份有限公司 | A mixing system for having stifled performance wet process mixing granulator that explodes |
Non-Patent Citations (1)
| Title |
|---|
| 郭永学.《制药设备与车间设计》.中国医药科技出版社,2019,第49页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115228255A (en) | 2022-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115228255B (en) | Side-entering stirrer sealing device | |
| KR101587265B1 (en) | Sludge stirring and Drying equipment | |
| CN101549258B (en) | Hydraulic driving rotating jet mixer | |
| JP4772537B2 (en) | Sludge treatment system | |
| KR200325092Y1 (en) | Agitator of anaerobic digester | |
| CN111606537A (en) | High-efficient anaerobic fermentation jar airtight formula end support agitating unit | |
| CN216554443U (en) | Vertical wear-resisting corrosion-resisting delivery pump | |
| JP2002266270A (en) | Shaft exit assembly to be used in boiler | |
| CN212610185U (en) | High-efficient anaerobic fermentation jar airtight formula end support agitating unit | |
| CN209100289U (en) | A kind of hydraulic motor-driven diving slurry pump | |
| CN209752710U (en) | Ore pulp stirring tank | |
| CN209155579U (en) | Gas seal stirrer | |
| CN102777640A (en) | Multi-hole one-way valve | |
| CN201120261Y (en) | Side-feeding stirring machine of external temporary plugging apparatus | |
| CN213012154U (en) | Quenching and tempering device for organic wastewater treatment | |
| CN117443175B (en) | Desulfurization thick liquid does not have stirring and prevents deposiing device | |
| CN217380978U (en) | Pump shaft anticorrosion structure | |
| CN220345682U (en) | Mechanical sealing device for online replacement of stirrer of absorption tower | |
| CN209704854U (en) | A kind of automatic agitating type dredge pump | |
| CN220745559U (en) | External circulation anaerobic reactor | |
| CN114394726B (en) | Anaerobic fermentation tank stirring device for fecal sewage treatment | |
| CN218624678U (en) | Submerged centrifugal pump with integrated dry gas sealing structure | |
| CN209164599U (en) | Gas sealing device for rotating equipment and stirrer | |
| CN215589661U (en) | High-efficient mixing arrangement of raw materials is used in PP-R pipe production | |
| CN220302739U (en) | Dual sealing device for slurry tank stirrer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |