CN110961434A - Center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts - Google Patents

Center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts Download PDF

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Publication number
CN110961434A
CN110961434A CN201911341681.7A CN201911341681A CN110961434A CN 110961434 A CN110961434 A CN 110961434A CN 201911341681 A CN201911341681 A CN 201911341681A CN 110961434 A CN110961434 A CN 110961434A
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China
Prior art keywords
sealing
heat exchange
drum
cavity
main shaft
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Granted
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CN201911341681.7A
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CN110961434B (en
Inventor
李易
唐清波
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Shandong Feng Won Machinery Manufacturing Co Ltd
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Shandong Feng Won Machinery Manufacturing Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/40Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
    • B09B3/45Steam treatment, e.g. supercritical water gasification or oxidation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18Stationary reactors having moving elements inside
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/18Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/20Packing materials therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/32Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/32Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268Mounting of sealing rings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/32Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/46Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/54Other sealings for rotating shafts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Architecture (AREA)
  • Fluid Mechanics (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The invention relates to a middle shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts, which is characterized in that: the device comprises a main shaft and shaft heads arranged at end sockets at two ends of a tank body through a sealing component; a plurality of heat exchange drums are axially arranged on the periphery of the main shaft; the heat exchange drum is provided with stirring fins; the stirring fins are correspondingly arranged on the heat exchange drum disc in a spiral surrounding mode along the main shaft; the main shaft is of a hollow tubular structure, wherein a hollow pipe cavity is used for circulating heat-conducting fluid, and a preset number of through holes are formed in the hollow pipe cavity at intervals in the axial direction; the heat exchange drum is provided with a plurality of heat exchange drums, the heat exchange drums are axially arranged and fixed on the outer wall of the main shaft, and the mounting positions of the heat exchange drums cover the through holes, so that the pipe cavity of the main shaft and the inner cavity of the drum are mutually communicated to form a heat exchange cavity. The center shaft assembly of the harmless treatment and canning of the livestock and poultry died of diseases and the slaughtering byproducts combines the sealing form of a plurality of grooves, a high-efficiency heat exchange mode and a scientific stirring wing arrangement mode, so that the center shaft operates more stably and efficiently.

Description

Center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts
Technical Field
The invention relates to a chemical tank making structure, in particular to a center shaft assembly for harmless treatment chemical tank making of livestock and poultry died of diseases and slaughter byproducts.
Background
In the harmless treatment and processing process of livestock and poultry died of diseases and slaughter wastes in China, high-temperature high-pressure dry and wet chemical processing is generally adopted, namely, chemical processing tanks are utilized for treatment, and the middle shaft in the chemical processing tanks plays a role in stirring and heat exchange, so that the quality of the structural performance of the middle shaft is very important for chemical processing production.
However, the central shaft of the existing harmless treatment and chemical tank making of livestock and poultry died of illness and slaughtering byproducts has the following main problems:
1. the axis structure of current system jar is mainly directly welded on axis (seamless steel pipe of metal) and stirs the wing or will stir the wing with the staple bolt and fix epaxial, in order to increase the heating efficiency in the jar, present way lets in steam central siphon intracavity, through well off-axial wall to jar interior material heating, nevertheless after all, centraxonial diameter is limited, its heat transfer area is less, heat utilization rate is low, so make the time of materialization system and drying longer, become the ubiquitous problem of awaiting for solution in the trade.
2. The middle shaft of the existing tank making usually adopts a through shaft structure with a longer shaft length. The processing process of the middle shaft is to process and form the whole through shaft, then weld the drum disc and stir the wings on the shaft body of the middle shaft, in practice, the middle shaft is easy to deform due to welding, so that the shaft heads at two ends of the middle shaft can not ensure concentricity, the sealing part is assembled at the shaft heads at two ends, if the concentricity of the shaft heads at two ends can not be ensured, the middle shaft can jump in the rotating operation process of the middle shaft, the sealing effect of the shaft heads at two ends is further influenced, and finally the packing abrasion phenomenon is very serious. At present, the sealing measure for shaft heads at two ends of a center shaft is realized by adopting a process of manually pressing packing by pressing an inner sleeve, an outer sleeve, a packing and a gland at the shaft head of a seal head and pressing by utilizing the gland. If shaft end air leakage occurs, manual pressing or packing adding and replacing is adopted, the operation is troublesome and the efficiency is low. In addition, the packing gland compression degree is not easy to master, the compression degree is insufficient and cannot achieve the sealing effect, and the compression degree is too large, so that the loads of a motor and a speed reducer are easily increased, and a main shaft is also abraded. In particular, the packing belongs to a wearing part, and the frequency of wearing and replacing is higher. The replacement is also troublesome and is not beneficial to the realization of the automatic function.
3. A central shaft of an existing chemical tank is provided with a plurality of stirring fins, the stirring fins are uniformly distributed into 3-4 rows along the radial direction of the central shaft, each row is provided with 4-8 stirring fins, each row of stirring fins are distributed along the same axis, during the material stirring process, the agglomerated materials (formed by winding a fibrous rope into a lump) are turned over by the stirring fins, and during the turning-over and rising period, the stressed stirring fins enable a motor to generate larger current due to sudden overload load; in the turning-over descending period, the current of the motor is instantaneously reduced due to sudden force unloading of the stirring fins, and the sudden high and low current change is very unfavorable for the stable operation of the motor and the speed reducer and very easy to influence the service life of the motor and the speed reducer. The stirring is not uniform, the material is heated unevenly, the normal preparation time of the material is influenced, and the production efficiency is reduced. The material that the ization was made can only rely on the scraper blade of stirring wing periphery to realize pushing away the material ejection of compact, and the ejection of compact time overlength is low in efficiency.
4. Because the inner container of the existing chemical tank is generally made of container carbon steel, firstly, the inner container of the chemical tank is influenced by a processing technology after being processed by a rolling plate, and the inner diameter of a finished product has certain dimensional deviation, so that the ideal dimensional requirement is difficult to achieve. On the other hand, the chemical tank can also deform correspondingly under the action of temperature change in the actual production and operation process, and particularly, the deformation is the most serious under the condition of severe temperature change when the operation is restarted after production is stopped. The deformation causes the change of the distance between the scraping plate of the stirring fin and the inner wall of the tank, the scraping plate can be directly contacted and collided with the inner wall of the tank in practice, larger noise is generated, and the motor speed reducer can be damaged. In the current production, the solution after the problem is caused is mainly to enter the tank body manually after the shutdown, the stirring wing scraper is trimmed and cut by a cutting tool, and then the tank body can be normally started again to operate. This also causes unnecessary trouble for normal production, greatly influences the efficiency of work.
Disclosure of Invention
The invention aims to provide a middle shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts, which has the technical characteristics of high heat efficiency, high efficiency, durability, strong deformation resistance, long service life of a motor, good sealing performance and stable and reliable operation.
The invention is realized by the following technical scheme:
a middle shaft assembly of a chemical tank for harmless treatment of livestock and poultry died of diseases and slaughter byproducts is hermetically assembled inside a chemical tank body and used for stirring and exchanging heat for materials inside the tank body; it is characterized in that:
the device comprises a main shaft positioned in a tank body and shaft heads arranged at end sockets at two ends of the tank body through sealing components; a plurality of heat exchange drum discs are axially arranged on the periphery of the main shaft; the heat exchange drum is provided with stirring fins; the plurality of stirring fins are correspondingly arranged on the plurality of heat exchange drum discs in a spiral surrounding mode along the main shaft;
the main shaft is of a hollow tubular structure, wherein a hollow pipe cavity is used for circulating heat-conducting fluid, and a preset number of through holes are formed in the hollow pipe cavity at intervals in the axial direction; the heat exchange drum disc is of a hollow drum disc structure formed by connecting two drum sheets in an involutory mode, is provided with a plurality of heat exchange drum discs, is axially arranged and fixed on the outer wall of the main shaft, and is covered with the through hole at the installation position, so that the tube cavity of the main shaft and the inner cavity of the drum disc are mutually communicated to form a heat exchange cavity.
The sealing structure comprises an inner sealing ring, a sealing joint body and a packing gland which are sequentially sleeved on the shaft head along the outer side of the tank body end socket, wherein a temperature-resistant and temperature-resistant rubber sealing body, a packing sealing body and a packing sealing body are attached to the sealing joint body, the temperature-resistant and temperature-resistant rubber sealing body, the packing sealing body and the packing sealing body are provided with surfaces in pressure contact with the middle shaft, and the surfaces are tightly matched with the periphery of the middle shaft through the sealing joint body; the packing sealing body is connected with an external pressurized packing device through a packing channel formed in the sealing connecting body; the filling material is filled into the sealing connection body through the external pressurized filling device so as to realize the sealing effect of rapid plugging at any time. The temperature-resistant and temperature-resistant rubber sealing body is a fluorine rubber sealing ring or a silica gel sealing ring; the filler sealing body adopts mud-shaped sealing filler; the packing sealing body can adopt various sealing packing such as aramid fiber sealing packing, asbestos sealing packing or graphite sealing packing; the heat-resistant and temperature-resistant rubber sealing body, the filler sealing body and the packing sealing body are respectively attached to the sealing joint body through three inner ring grooves formed in the sealing joint body; wherein, the packing sealing body is positioned between the temperature-resistant and temperature-resistant rubber sealing body and the packing sealing body. One side of the sealing inner retainer ring is fixedly connected with the outer side of the tank body end socket, the other side of the sealing inner retainer ring is tightly pressed on the inner side of the sealing connection body, and meanwhile, a lateral pressing force is applied to the temperature-resistant and temperature-resistant rubber sealing body to enable the temperature-resistant and temperature-resistant rubber sealing body to be tightly pressed and contacted with the central shaft; the packing gland is pressed and fixed from the outer side of the sealing joint body, and is provided with an inner sleeve which pushes and presses the packing laterally and an outer connector which is fastened and fixed with the sealing joint body;
the under-pressure filling device comprises a hydraulic pump station, a hydraulic pipeline, a hydraulic gun and an injection pipeline; the output end of the hydraulic pump station is connected with the input end of a hydraulic gun through a hydraulic pipeline, and the output end of the hydraulic gun is communicated with the filler channel of the sealing connector through an injection pipeline; the filling pipeline is provided with a filling valve; the hydraulic gun comprises a cylinder barrel and a piston arranged in the cylinder barrel, wherein one end of the cylinder barrel is screwed with a front cover, the end part of a mud storage bin is pressed and installed at the end part of the cylinder barrel through a through hole in the middle of the front cover, and the other end of the cylinder barrel is screwed with a rear cover and is connected with a hydraulic pipeline through a through hole in the middle of the rear cover; the feed inlet has been seted up at storage mud storehouse middle part just the feed inlet is equipped with sealed charging cover, the tip of storing up mud storehouse has connect the feed bin protecgulum soon, the feed bin protecgulum links to each other with annotating the pipeline through the through-hole that the middle part was seted up. And a pipeline valve is arranged between the rear cover and the hydraulic pipeline.
The two drum sheets forming the heat exchange drum are both in a spherical crown structure and are welded together in a mirror image manner; compared with a drum sheet with a plane structure, the drum sheet in the shape of the spherical crown has the characteristics of good pressure resistance and strong deformation resistance. The middle part of the drum sheet is provided with an inner sleeve hole for welding with the outer wall of the main shaft, and after the excircles of the two drum sheets are involuntarily welded, a hollow cavity is formed in the drum sheet.
In order to avoid the problem that condensed water generated by the steam inside the central shaft of the chemical tank and in the inner cavity of the heat exchange drum plate sinks into the bottom of the drum plate cavity when encountering cold and can be discharged from the shaft end rotary joint until the condensed water level rises to the central position of the main shaft, thereby reducing the heat exchange temperature and area, increasing the load of the main shaft and increasing the energy consumption. The inner cavity of the heat exchange drum is provided with a fin-shaped partition plate which can divide the inner through cavity into a plurality of partition cavities, and the partition cavities are communicated with the inner cavity of the middle shaft through holes formed in the middle shaft; through the isolation effect of the fin-shaped partition plate, the condensed water in each separated cavity is discharged from the cavity to the cavity of the main shaft along with the change of the position of the cavity, and finally is discharged to the outside through the rotary joint.
Furthermore, in order to achieve a good heat exchange effect and a good water drainage effect, a plurality of through holes are uniformly formed in the circumferential direction of the main shaft at the position of the drum installation middle cavity at each position, so that steam can enter the drum middle cavity through the through holes. The plurality of the wing-shaped partition plates are correspondingly arranged, and the wing-shaped partition plate structure not only has the function of reinforcing ribs for the drum disc, but also is beneficial to steam condensate water which is raised by the wing-shaped partition plates along with the rotation of the central shaft and flows back to the central cavity of the main shaft through the through holes to be discharged through the rotary joint.
The stirring fins spirally surrounding the periphery of the heat exchange drum are arranged in a thread shape, and the lead of the stirring fins is 1.6-7.6 m. The number of the stirring fins in one lead is designed to be 5-30.
The stirring fins comprise column feet which are connected with the heat exchange drum disc to play a supporting role and fin scraping plates which are positioned at the end parts of the column feet and matched with the inner wall of the chemical preparation tank to realize the functions of scraping, stirring and pushing materials; the wing scrapers adopt a rectangular plate structure or two corners of the rectangular plate structure are removed from the side back to the tank wall so as to reduce scraping and stirring resistance, and the wing scrapers have the functions of scraping the inner wall of the preparation tank and stirring materials in the tank.
The wing scraper is made of a metal material with the hardness smaller than that of the steel material of the container of the tank inner container; when the wing scraper plate collides and contacts with the inner wall of the tank body, the wing scraper plate made of the material can reduce the friction coefficient with the inner wall of the tank body through self abrasion; and then at the beginning of wing scraper blade design, further reduce the interval between its scraper blade top surface and the jar body, thereby this way can more effectual scraping adhesion improve heat exchange efficiency at the material of jar internal wall on the one hand, on the other hand can also effectively avoid causing motor reducer damage because of the high frictional force that produces with the laminating striking of jar internal wall.
The center shaft assembly of the harmless treatment and canning of the livestock and poultry died of diseases and the slaughtering byproducts combines the sealing form of a plurality of grooves, the high-efficiency heat exchange mode and the scientific stirring fin arrangement mode, so that the center shaft operates more stably and efficiently, and has excellent heat exchange effect.
The effects of the sealing mode, the heat exchange mode and the stirring fin arrangement mode are analyzed and explained one by one as follows:
the sealing joint body is provided with a plurality of grooves to realize a multi-sealing structure of the sealing joint body, wherein one annular shaft groove is internally provided with flexible sealing between the annular shaft groove and a middle shaft by filling a mud-shaped filler, and the effect of filling the filler at any time and adjusting the sealing performance at any time can be realized by an external pressurized filling device. The external pressurized filling device is remotely controlled, the production efficiency is improved, the filling can be performed at any time under the condition of no shutdown, and the filling mode can be manual and electric filling or program combined automatic filling of the internal pressure of the tank. The middle shaft sealing structure breaks through the operation limitation that the traditional shaft end sealing device can only adopt extrusion packing for sealing at present, is safe and reliable to operate, and obviously reduces the power loss.
The drum disc is formed by combining two spherical crown drum pieces in a mirror image mode, not only has higher self-strength, but also can greatly improve the heat exchange area between the whole main shaft and materials through the drum disc; during operation drum dish is at a jar internal rotation along with the main shaft, the outer problem of arranging of comdenstion water backward flow that gets into the drum dish inner chamber not only can effectively be solved to the inside a plurality of wing shape baffle of drum dish, still further improve the bulk strength of drum dish as inside strengthening rib simultaneously, separate into a plurality of spaced cavity with whole drum dish inner chamber through wing shape baffle, after the comdenstion water gets into spaced cavity, can accompany the rotation of drum dish, the main shaft pipe intracavity flows back, the rotary joint of jar external connection main shaft of rethread is arranged outward, the problem that the main shaft is overweight and the power consumption is high that the drum dish caused because of inside ponding is too much has been avoided. The invention also solves the problems of high friction force and even damage of the motor reducer caused by the collision of the iron stirring wings and the inner wall of the tank body by changing the material of the traditional stirring wings, and further ensures the stable and reliable operation of the whole tank body.
By changing the arrangement mode of the large thread lead of the existing stirring wings on the central shaft, the problems that the power current is suddenly high and suddenly low and is seriously unstable due to the large rotary ascending load of the stirring cluster in the existing stirring wing structure and the load of the agglomerated materials on a motor speed reducer is unstable in the stirring wing overturning process are solved. This application adopts to arrange along axis spiral and stirs the wing and set for the structural style of its big screw thread helical pitch, does benefit to the material more and scatters at the stirring in-process, is difficult for the heap caking to make the stirring more even, the material can thermally equivalent, reaches better change system effect. The wing scrapers are made of metal materials with the hardness smaller than that of the materials of the inner wall of the tank, and when the wing scrapers collide with the inner wall of the tank body, the friction coefficient between the wing scrapers and the inner wall of the tank body can be reduced through self abrasion; therefore, the fin scraper made of the metal material with the hardness smaller than that of the inner wall of the tank can further reduce the distance between the fin scraper and the tank body at the beginning of the design, on one hand, the inner wall of the tank can be effectively scraped to improve the heat exchange efficiency, and on the other hand, the damage or damage of the motor reducer caused by the collision between the fin scraper and the tank body due to the deformation of the carbon steel tank body in different degrees caused by the temperature difference of the tank caused by production and production stop can be effectively avoided.
Drawings
FIG. 1: an axonometric view of a centre shaft assembly of harmless treatment chemical tank making of livestock and poultry died of illness and slaughter by-products;
FIG. 2: the front view of FIG. 1;
FIG. 3: the left side view of FIG. 1;
FIG. 4: the structure of the sealing component at the shaft head of the middle shaft is schematic;
FIG. 5: a seal assembly cross-sectional view;
FIG. 6: a hydraulic gun structure schematic diagram;
FIG. 7: a schematic diagram of a drum sheet structure;
FIG. 8: cross-sectional view AA in fig. 7;
FIG. 9: a schematic structural diagram of the fin-shaped partition plate;
FIG. 10: a structural schematic diagram of the fin scraper;
in the figure, 10, a main shaft, 11, a shaft head, 101, a through hole, 20, a heat exchange drum disc, 21, a drum sheet, 21a, an inner sleeve hole, 21b, an outer circle, 22, a fin-shaped partition plate, 30, a stirring fin, 31, a column foot, 32, a fin scraper, 321, a scraper top surface, 322, a side straight surface, 323, a side inclined surface, 40, a tank body end enclosure, 41, a sealing inner retainer ring, 42, a sealing connecting body, 421, a temperature-resistant rubber sealing body, 422, a packing sealing body, 423, a packing sealing body, 43, a packing gland, 44, a packing channel, 50, a hydraulic pump station, 51, a pump station switch, 52, a hydraulic pipeline, 53, a pipeline valve, 54, a hydraulic gun, 541, a tank barrel, 542, a piston, 543, a front cover, 544, a mud storage bin, 544a charging opening, 545, a rear cover, 546, a material creating front cover, 55, an injection pipeline, 7 and a hydraulic.
Detailed Description
The following provides a specific embodiment of the bottom bracket bearing assembly for the can manufacturing of the present invention, which is provided with reference to the accompanying drawings for further detailed description of the specific structural composition, design principle and operation process of the present invention.
Example one
The embodiment provides a harmless treatment chemical tank for livestock and poultry died of diseases and slaughter byproducts, the length of the chemical tank is 3.5 meters, a main shaft 10 matched with the length of the tank and shaft heads 11 arranged at end sockets at two ends of the tank body through sealing components are arranged in the tank, and 12 heat exchange drums 20 are axially arranged on the periphery of the main shaft 10; the main shaft 10 is a hollow tubular structure, wherein a hollow pipe cavity is used for circulating heat-conducting fluid, and a predetermined number of through holes 101 are formed in the hollow pipe cavity at intervals in the axial direction; the heat exchange drum 20 is a hollow drum disc structure formed by connecting two drum sheets 21 in an involutory manner, is axially arranged and fixed on the outer wall of the main shaft 10, and is installed at a position covering the through hole, so that the cavity of the main shaft and the inner cavity of the drum disc are mutually communicated to form a heat exchange cavity; the periphery of the heat exchange drum 20 is spirally and axially provided with stirring fins 30, the thread lead of the stirring fins 30 is 3.5 m, the number of the stirring fins is 12, and the 12 stirring fins 30 are uniformly distributed along the central axis in a threaded manner.
The sealing assembly comprises an inner sealing retainer ring 41, a sealing connecting body 42 and a packing gland 43 which are sequentially sleeved on the shaft head 11 along the outer side of the tank body end socket 40, wherein a temperature-resistant rubber sealing body 421, a packing sealing body 422 and a packing sealing body 423 are attached to the sealing connecting body 42, the temperature-resistant rubber sealing body 421, the packing sealing body 422 and the packing sealing body 423 are provided with surfaces which are in press contact with the shaft head 11, and the surfaces are in press fit with the periphery of the shaft head 11 through the sealing connecting body 42; the packing sealing body 422 is connected with an external pressurized filling device through a packing channel 44 formed in the sealing connection body 42; the external pressurized filling device supplements the filler into the sealing connection body 42 to realize the sealing effect of rapid plugging at any time. The heat-resistant rubber sealing body 421, the filler sealing body 422 and the packing sealing body 423 are respectively a heat-resistant fluorine rubber sealing ring, a mud-shaped sealing filler and an aramid packing; the high-temperature-resistant fluorine rubber sealing ring, the mud-shaped sealing filler and the aramid packing are respectively attached to the sealing joint body 42 through three inner ring grooves formed in the sealing joint body 42; wherein, the mud-shaped sealing filler is positioned between the high-temperature-resistant fluorine rubber sealing ring and the aramid packing. One side of the inner sealing retainer ring 41 is fixedly connected with the outer side of the tank body end socket 40, the other side of the inner sealing retainer ring is pressed against the inner side of the sealing connector 42, and meanwhile, a lateral pressing force is applied to the high-temperature-resistant fluorine rubber sealing ring to enable the high-temperature-resistant fluorine rubber sealing ring to be pressed and contacted with the shaft head 11 more tightly; the packing gland 43 is pressed and fixed from the outer side of the sealing connector 42, and is provided with an inner sleeve which is laterally pushed and pressed on the aramid packing and an outer connector which is fixedly fastened with the sealing connector; the under-pressure filling device comprises a hydraulic pump station 50, a pump station switch 51, a hydraulic pipeline 52, a pipeline valve 53, a hydraulic gun 54 and an injection pipeline 55; the hydraulic pump station 50 is connected with a pump station switch 51, and pumping control is realized through the pump station switch 51; the output end of the hydraulic pump station 50 is connected with the input end of a hydraulic gun 54 through a hydraulic pipeline 52 and a pipeline valve 53, and the output end of the hydraulic gun 54 is communicated with the filling channel 44 of the sealing connection body 42 through an injection pipeline 55. The hydraulic gun 54 comprises a cylinder 541 and a piston 542 arranged inside the cylinder 541, one end of the cylinder 541 is screwed with a front cover 543, the end of a mud storage bin 544 is pressed at the end of the cylinder 541 through a through hole in the middle of the front cover 543, the other end of the cylinder 541 is screwed with a rear cover 545, and the hydraulic gun is connected with a hydraulic pipeline 7 through a through hole in the middle of the rear cover 545; a feed inlet 544a is formed in the middle of the sludge storage bin 544 and is provided with a sealed feed cover, a bin front cover 546 is screwed to the end of the sludge storage bin 544, and the bin front cover is connected with an injection pipeline through a through hole formed in the middle. The middle shaft head of the embodiment adopts three seals, wherein the first seal is a high-temperature-resistant fluorine rubber seal ring, the second seal is oil sludge seal, and the third seal is packing seal. The second is the main seal, and the sealing filler is flexible graphite filler. The main function of the first channel and the third channel is to ensure that the oil sludge also has the sealing function in the second channel cavity. When the structure is fixed at the shaft end of a chemical tank (reaction kettle), sealing can be realized only by injecting oil sludge into the cavity through the oil sludge injection hydraulic cylinder during operation. The oil sludge is flexible graphite filler sludge, has good wear resistance and filling property, and can achieve a high sealing effect in the cavity along with the deformation of the shaft according to the rotation condition of the shaft. The sealing structure can realize the manual and electric injection without stopping the machine and also can realize the automatic injection sealing by computer programming according to the pressure in the chemical tank manufacturing.
Two drum pieces 21 forming the heat exchange drum 20 adopt spherical structures welded together in a mirror image mode, an inner sleeve hole 21a used for being welded with the outer wall of the main shaft is formed in the middle of each drum piece 21, and a hollow cavity is formed in the two drum pieces 21 after outer circles 21b of the two drum pieces 21 are welded in an involution mode. The drum sheets 21 are actually in the shape of spherical caps, and after the two spherical-cap-shaped drum sheets 21 are oppositely fixed, both sides of the drum sheets are curved surfaces with certain radian, compared with a plane, the structure not only increases the surface area, but also greatly improves the compression resistance and deformation resistance of the drum sheets. 16 drums 20 are welded on the outer wall of the main shaft 10 in an array, and the installation position covers the through hole 101 formed in the main shaft 10, so that the cavity of the main shaft and the heat conducting fluid in the inner cavity of the drum are communicated with each other. In order to avoid that condensed water generated by steam in the tank when the steam is cooled sinks into the bottom of the heat exchange drum disc to increase the load of a main shaft, increase energy consumption and influence the service life of the motor, a fin-shaped partition plate 22 which can divide an internal through cavity into a plurality of separated cavities and can play a role in pumping water is arranged in the heat exchange drum disc 20; the fin-shaped partition plate 22 is triangular, two sides of the fin-shaped partition plate are respectively welded with the inner wall of the heat exchange drum, and the other side of the fin-shaped partition plate is not in direct contact with the main shaft 10 but is reserved with a certain distance; in this embodiment, in order to achieve a better heat exchange effect and a better water drainage effect, three groups of through holes 101 are uniformly formed in the circumferential direction of the main shaft at each drum installation position, three fin-shaped partition plates 22 are correspondingly arranged, and the installation position of each fin-shaped partition plate 22 is located in the middle of two through holes 101 which are each other in one group, so that the through holes 101 in any one of the spaced cavities are respectively located at the inner sides of the two fin-shaped partition plates 22, and through the isolation effect of the fin-shaped partition plates 22, the condensed water in each spaced cavity is discharged from the cavity to the cavity of the main shaft along with the change of the position of the cavity, and is finally discharged by the rotary joint.
The stirring fins 30 are correspondingly arranged at preset positions on the periphery of the heat exchange drum 20 along the axis of the main shaft in a single-thread surrounding mode, and each lead is 3.5 meters. The stirring fins 30 comprise column feet 31 with the root parts used for being connected with the drum disc to play a supporting role and fin scraping plates 32 which are positioned at the end parts of the column feet and matched with the inner wall of the chemical tank to realize the functions of scraping, stirring and pushing materials; the finned scraper 32 is of a right-angled trapezoid or right-angled triangle plate structure, and is provided with a scraper top surface 321 which is opposite to the inner wall of the chemical tank and is parallel to each other, a side straight surface 322 which is arranged on one vertical side of the scraper top surface 321 and is in contact with the material to realize stirring, and a side inclined surface 323 which is arranged on the other vertical side of the scraper top surface 321 and is in contact with the material to realize discharging; the straight side surfaces 322 are parallel to the central axis in space, and the inclined side surfaces 323 have a predetermined included angle with the central axis in space. The fin scraper 32 is made of a metal material with the hardness smaller than that of the steel material of the tank inner container, and when the fin scraper 32 collides and contacts with the inner wall of the tank body, the fin scraper made of the material can reduce the friction coefficient with the inner wall of the tank body through self abrasion; and then at the beginning of the design of wing scraper blade, further reduce the interval between its scraper blade top surface and the jar body, thereby this way can more effectual scraping adhesion improve heat exchange efficiency at the material of jar internal wall on the one hand, on the other hand can also effectively avoid causing motor reducer damage because of the high frictional force that produces with the laminating striking of jar body.

Claims (10)

1. A middle shaft assembly of a chemical tank for harmless treatment of livestock and poultry died of diseases and slaughter byproducts is hermetically assembled inside a chemical tank body and used for stirring and exchanging heat for materials inside the tank body; the method is characterized in that:
the device comprises a main shaft positioned in a tank body and shaft heads arranged at end sockets at two ends of the tank body through sealing components; a plurality of heat exchange drum discs are axially arranged on the periphery of the main shaft; the heat exchange drum is provided with stirring fins; the plurality of stirring fins are correspondingly arranged on the plurality of heat exchange drum discs in a spiral surrounding mode along the main shaft;
the main shaft is of a hollow tubular structure, wherein a hollow pipe cavity is used for circulating heat-conducting fluid, and a preset number of through holes are formed in the hollow pipe cavity at intervals in the axial direction; the heat exchange drum disc is of a hollow drum disc structure formed by connecting two drum sheets in an involutory mode, is provided with a plurality of heat exchange drum discs, is axially arranged and fixed on the outer wall of the main shaft, and is covered with the through hole at the installation position, so that the tube cavity of the main shaft and the inner cavity of the drum disc are mutually communicated to form a heat exchange cavity.
2. The center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts as claimed in claim 1, characterized in that
The sealing structure comprises an inner sealing ring, a sealing joint body and a packing gland which are sequentially sleeved on the shaft head along the outer side of the tank body end socket, wherein a temperature-resistant and temperature-resistant rubber sealing body, a packing sealing body and a packing sealing body are attached to the sealing joint body, the temperature-resistant and temperature-resistant rubber sealing body, the packing sealing body and the packing sealing body are provided with surfaces in pressure contact with the middle shaft, and the surfaces are tightly matched with the periphery of the middle shaft through the sealing joint body; the packing sealing body is connected with an external pressurized packing device through a packing channel formed in the sealing connecting body; the filling material is filled into the sealing connection body through the external pressurized filling device so as to realize the sealing effect of rapid plugging at any time.
3. The center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts as claimed in claim 2, characterized in that
The heat-resistant and temperature-resistant rubber sealing body, the filler sealing body and the packing sealing body are respectively attached to the sealing joint body through three inner ring grooves formed in the sealing joint body; wherein, the packing sealing body is positioned between the temperature-resistant and temperature-resistant rubber sealing body and the packing sealing body; one side of the sealing inner retainer ring is fixedly connected with the outer side of the tank body end socket, the other side of the sealing inner retainer ring is tightly pressed on the inner side of the sealing connection body, and meanwhile, a lateral pressing force is applied to the temperature-resistant and temperature-resistant rubber sealing body to enable the temperature-resistant and temperature-resistant rubber sealing body to be tightly pressed and contacted with the central shaft; the packing gland is fixed to the packing gland in a pressing mode from the outer side of the sealing joint body, and is provided with an inner sleeve pushing and pressing the packing laterally and an outer connecting body fixedly fastened with the sealing joint body.
4. The center shaft assembly of the harmless treatment and chemical tank making of the livestock and poultry died of diseases and the slaughter byproducts as claimed in claim 3, characterized in that
The under-pressure filling device comprises a hydraulic pump station, a hydraulic pipeline, a hydraulic gun and an injection pipeline; the output end of the hydraulic pump station is connected with the input end of a hydraulic gun through a hydraulic pipeline, and the output end of the hydraulic gun is communicated with the filler channel of the sealing connector through an injection pipeline; the filling pipeline is provided with a filling valve; the hydraulic gun comprises a cylinder barrel and a piston arranged in the cylinder barrel, wherein one end of the cylinder barrel is screwed with a front cover, the end part of a mud storage bin is pressed and installed at the end part of the cylinder barrel through a through hole in the middle of the front cover, and the other end of the cylinder barrel is screwed with a rear cover and is connected with a hydraulic pipeline through a through hole in the middle of the rear cover; the middle part of the sludge storage bin is provided with a feed inlet which is provided with a sealed feed cover, the end part of the sludge storage bin is screwed with a front cover of the storage bin, and the front cover of the storage bin is connected with an injection pipeline through a through hole arranged in the middle part; and a pipeline valve is arranged between the rear cover and the hydraulic pipeline.
5. The center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts as claimed in claim 1, characterized in that
The two drum sheets forming the heat exchange drum are both in a spherical crown structure and are welded together in a mirror image manner; the middle part of the drum sheet is provided with an inner sleeve hole for welding with the outer wall of the main shaft, and after the excircles of the two drum sheets are involuntarily welded, a hollow cavity is formed in the drum sheet.
6. The center shaft assembly of the harmless treatment and chemical tank making of the livestock and poultry died of diseases and the slaughter byproducts as claimed in claim 5, characterized in that
The inner cavity of the heat exchange drum is provided with a fin-shaped partition plate which can divide the inner through cavity into a plurality of partition cavities, and the partition cavities are communicated with the inner cavity of the middle shaft through holes formed in the middle shaft; through the isolation effect of the fin-shaped partition plate, the condensed water in each separated cavity is discharged from the cavity to the cavity of the main shaft along with the change of the position of the cavity, and finally is discharged to the outside through the rotary joint.
7. The center shaft assembly of the harmless treatment and chemical tank making of the livestock and poultry died of diseases and the slaughter byproducts as claimed in claim 6, characterized in that
A plurality of through holes are uniformly formed in the circumferential direction of the main shaft at the position of the middle cavity for mounting the drum disc at each position, a plurality of fin-shaped partition plates are correspondingly arranged, and the fin-shaped partition plate structure has the function of reinforcing ribs for the drum disc and is beneficial to the steam condensate water which is raised by the fin-shaped partition plates along with the rotation of the middle shaft to flow back into the middle cavity of the main shaft through the through holes and be discharged through the rotary joint.
8. The center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts as claimed in claim 1, characterized in that
The stirring fins spirally surrounding the periphery of the heat exchange drum are arranged in a thread shape, and the lead of the stirring fins is 1.6-7.6 m; the number of the stirring fins in one lead is designed to be 5-30.
9. The center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts as claimed in claim 1, characterized in that
The stirring fins comprise column feet which are connected with the heat exchange drum disc to play a supporting role and fin scraping plates which are positioned at the end parts of the column feet and matched with the inner wall of the chemical preparation tank to realize the functions of scraping, stirring and pushing materials; the wing scrapers adopt a rectangular plate structure or two corners of the rectangular plate structure are removed from the side back to the tank wall so as to reduce scraping and stirring resistance, and the wing scrapers have the functions of scraping the inner wall of the preparation tank and stirring materials in the tank.
10. The center shaft assembly for harmless treatment and chemical tank making of livestock and poultry died of diseases and slaughter byproducts as claimed in claim 9, characterized in that
The wing scraper is made of a metal material with the hardness smaller than that of the steel material of the container of the tank inner container.
CN201911341681.7A 2019-12-24 2019-12-24 Center shaft assembly of innocent treatment system jar of beasts and birds dying of illness and slaughtering accessory substance Active CN110961434B (en)

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Publication number Priority date Publication date Assignee Title
CN113884374A (en) * 2021-09-30 2022-01-04 中天科技海缆股份有限公司 Submarine cable water pressure test cabin
CN113884374B (en) * 2021-09-30 2023-10-03 中天科技海缆股份有限公司 Sea cable water pressure test cabin

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