CN221301753U - Mechanical ash scraping powder material cooling machine - Google Patents

Abstract

The utility model belongs to the technical field of powder material cooling equipment, and provides a mechanical ash scraping powder material cooler which aims at solving the problems that the temperature of the existing powder material is too high, the product quality is affected and the like. A plurality of cooling water pipes are vertically and uniformly arranged in the cooling machine box, a mechanical ash scraping device is transversely arranged on the outer wall of each cooling water pipe, and the mechanical ash scraping device is connected with a hydraulic cylinder at the upper part of the cooling machine box; the cooling machine box is provided with a box body outer shell spray cooling device or an outer shell circulating water jacket cooling device. The bottom of the cooler box body is provided with an air charging box with an air permeable layer, the lower part of the air charging box or the side wall of the cooler box body is provided with a main air inlet pipe, the main air inlet pipe is provided with branch air inlet pipes at intervals, the air charging box is connected with the main air inlet pipe through the branch air inlet pipes, and the end part of the main air inlet pipe is connected with the air outlet of the Roots blower; the heat exchange area is increased, the accumulated ash on the pipe wall is cleaned in time, and the heat exchange is more complete. Small occupied area, convenient installation and low power consumption. Each series or parallel application may also be added to achieve better cooling.

Description

Mechanical ash scraping powder material cooling machine

Technical Field

The utility model belongs to the technical field of powder material cooling equipment, and particularly relates to a mechanical ash scraping powder material cooler.

Background

The utility model discloses a powdery material cooler, which comprises a cooler box body, a cooling water pipe and a mechanical ash scraping device, wherein the cooling water pipe and the mechanical ash scraping device are horizontally arranged in the cooler, and the cooling water pipe is arranged at two ends of the outside of the cooler box body. The air charging box is arranged at the bottom of the box body of the cooler, the bronchus is connected with the air charging box, and the main air pipe is connected with the bronchus and arranged at the lower part of the air charging box or beside the cooler body, and is supplied by the Roots blower. The wall of the cooling water pipe is provided with an ash scraping device which can reciprocate horizontally and is used for cleaning condensed adhesion matters on the pipe wall, and the ash scraping device is pushed by a hydraulic oil cylinder fixed outside a frame plate of the machine body.

In actual operation, the cooling water pipe is horizontally arranged, the ash scraping device for cleaning condensed adhesion matters on the pipe wall is also required to be horizontally arranged, and the interior of the cooling box body is filled with powder materials, so that when the oil cylinder push rod is pushed back and forth, the push rod is easily sealed when being arranged at the position without powder on the upper part of the box body of the cooling box, and the sealing treatment of the push rod passing through the rack plate of the cooling box is difficult.

When the hydraulic oil cylinder is in operation, the push rod frame is placed on the upper part of the cooler and is unbalanced in stress, so that the instantaneous resistance is easily excessively high due to the blocking between the scraper device and the cooling water pipe, and the damage to the scraper device can be caused when the pressure of the oil cylinder is insufficient or the pressure of the oil cylinder is enough. In addition, the scraper blade only can play the role of scraping condensation adhesion matters outside the cooling water pipe when the cooling box is horizontally pushed, so that materials at the lower part of the cooling box cannot be mixed with materials at the upper part of the cooling box to turn over, and the materials at the lower part of the cooling box are easy to become dead zones. The cooling effect of the cooling water pipe in the lower space of the cooling box cannot be better exerted, and the cooling effect is affected.

The utility model does not further cool the shell of the cooler box body and does not scrape ash on the inner wall of the box body.

Disclosure of utility model

The utility model provides a mechanical ash scraping powdery material cooler, which aims to solve the problems that the cooling effect of a cooling water pipe in the lower space of a cooling box cannot be well exerted, the cooling effect is influenced and the like due to the fact that the temperature of the existing powdery material is high, and the scraper device is damaged.

The utility model is realized by adopting the following technical scheme: a mechanical ash scraping powdery material cooler comprises a cooler box body, wherein a feeding hole, a discharging hole and a dust collecting hole are formed in the side wall of the cooler box body, a plurality of slag removing holes are formed in the top of the cooler box body at intervals, a plurality of cooling water pipes are vertically and uniformly arranged in the cooler box body, a mechanical ash scraping device is transversely arranged on the outer wall of each cooling water pipe, and the mechanical ash scraping device is connected with a hydraulic oil cylinder fixed on the upper portion of the cooler box body; the cooling machine box is externally provided with a box body outer shell spray cooling device or an outer shell circulating water jacket cooling device, the bottom of the cooling machine box is provided with an air charging box with an air permeable layer, the lower part of the air charging box or the side wall of the cooling machine box is provided with a main air inlet pipe, the main air inlet pipe is provided with a branch pipe at intervals, the air charging box is connected with the main air inlet pipe through the branch pipe, and the end part of the main air inlet pipe is connected with the air outlet of the Roots blower;

the mechanical ash scraping device is a nylon plate and a strip-shaped scraping plate which are arranged on the ash scraping device bracket; the mechanical ash scraping device is connected with a hydraulic oil cylinder arranged on the upper cover of the cooling machine box body to push a push rod, and the push rod is pushed to drive the mechanical ash scraping device to reciprocate up and down on the cooling water pipe wall.

And the flange joints between the frame plates at the two ends of the cooler box body and the inflatable boxes, the two sides of the cooling water pipe and the two rows of inflatable boxes are respectively provided with an inflatable rod for fully gasifying materials in the cooler box body.

The cooling water pipes are positioned and fixed in the cooling machine box body through positioning holes on the cooling machine box body shell, the cooling water pipes are vertically arranged at equal intervals, and the cooling water pipes are installed in the upper and lower shell water pipe fixing reinforcing structures which are arranged through the cooling machine box body through the positioning holes which are uniformly distributed at the upper and lower parts; the outer joint of the cooling water pipe and the shell of the cooling machine box body is fixedly connected by a U-shaped elbow; a cold water inlet is formed in the upper part of one end of the cooler box body, the cold water inlet is connected with a cooling water tower, and a cold water outlet is formed in the upper part of the other end of the cooler box body; ; a water temperature meter is respectively arranged on the cooling water pipes at the cold water inlet and the cold water outlet;

The part of the cooling water pipe extending out of the cooler box body is fixedly connected with the shell of the cooler box body, and is provided with a sealing device which is connected with the U-shaped elbow by a movable joint; the cooling water pipe is welded with the reinforcing structure of the lower part of the shell of the cooling machine box body and is welded with the U-shaped elbow, and the lowest end of the U-shaped elbow is provided with a drainage structure.

Further, the box body shell spray cooling device is a cooling spray water pipe arranged on the box body shell, a water tank is arranged at the edge of the bottom of the box body of the cooling machine, the water tank terminal is connected with a water collecting tank, and the water collecting tank is connected with a cooling tower.

Furthermore, the shell circulating water jacket cooling device is formed by welding a cooling water circulating water jacket on the box body frame plate and the side plates, and the cooling water circulating water jacket is connected with a cooling tower.

At least 1 group of mechanical ash scraping devices are uniformly arranged on the length direction of the outer wall of the cooling water pipe in the cooling machine box body; the scraping plates of the mechanical ash scraping device are two half nylon plates sleeved on the outer wall of the cooling water pipe, the two half nylon plates are fixed by two pressing plates through bolts, the other ends of the pressing plates are arranged in corresponding clamping grooves on the ash scraping device support, and gaps are reserved between the clamping grooves and the nylon plates; the clamping groove is fixedly connected by a clamping groove pressing plate through bolts;

The long nylon plate is fixed at the edge of the bracket of the ash scraping device through a pressing plate bolt and a long pressing plate, and the bolt hole on the long nylon plate is of a long hole structure for adjusting the gap between the long nylon plate and the inner wall.

The two half nylon plates and the long nylon plate are both temperature-resistant nylon plates. The cooling water pipe is a seamless pipe, and no loose joint, pipe hoop, flange, elbow or welded connection exists in the cooling box body.

The hydraulic cylinders control the stroke position through limit switches, the hydraulic cylinders are divided into two groups, and a push rod of each hydraulic cylinder and a sealing device of the cooler box body are arranged at a material-free position above the box body.

Further, the cooler box body is divided into an upper unit and a lower unit, a partition plate is arranged in the middle of the cooler box body, a material channel is arranged at the lower part of the partition plate, and materials enter the box body from a feed inlet of an upper space and enter the upper space through the bottom of the partition plate.

The scraping plate on the cooling water pipe is made of nylon material, and is wear-resistant, high-temperature-resistant and high-temperature-resistant at more than 150 ℃. The scraping plate is formed by sleeving a nylon plate on the pipe wall and connecting two steel plates through bolts so as to ensure the strength of the scraping plate, and is arranged in a clamping groove of the ash scraping device, a certain gap is reserved between the clamping groove and the nylon plate, and no blocking phenomenon exists between the nylon plate and the pipe wall during ash scraping. The long-strip nylon plate is fixed on the ash scraping device bracket by a long-strip pressing plate through bolts.

The hydraulic cylinder works for one stroke to complete the twice cleaning of the cooling water pipe wall and the inner wall of the box body by the scraping plate. The outer elbow of the cooling water pipe body is fixedly connected, and the upper part is connected with the elbow by a movable joint, so that the ash scraping device in the box body can be taken out from the upper part during maintenance. The cooling water pipe uses a seamless pipe, and the inside of the cooling box is not required to be connected in a loose joint, a pipe hoop, a flange, an elbow, welding and other connection modes so as to avoid water leakage. The water temperature of the inlet and outlet of the circulating water of the cooler is detected by a water temperature meter respectively, and the performance of the cooler is mastered according to the temperature difference. The water supply temperature of the circulating water is less than or equal to 25 ℃ so as to meet the cooling use requirement. The cooling circulating water is preferably softened water in the cooling tank, and enters the cooler through the pump and the valve, so that the pressure gauge and the flow gauge are arranged at the water inlet, the pressure is controlled to be more than 0.2MPa, and the water supply quantity meets the use requirement.

The cooling water pipes are vertically distributed in the box space of the cooling machine, the ash scraping devices are uniformly arranged on the outer walls of the cooling water pipes and used for cleaning condensed adherends on the pipe walls and the box shell, when the scraping devices do up-and-down reciprocating work, powder which just flows into the box can be mixed with lower powder through stirring of the scraping devices, so that part of upper powder can enter the lower part, and the lower powder can be discharged after being mixed with part of hot materials, and the heat exchange between the powder and the cooling water pipes is more complete.

The ash scraping device is formed by sleeving a nylon plate on the pipe wall and fixedly connecting the nylon plate with a pressing plate through bolts and is arranged in a clamping groove of the scraping plate device, and a certain gap is reserved between the nylon plate, the pressing plate and the clamping groove. The upper part of the cooler is provided with a plurality of groups of hydraulic cylinders which drive scraping plates (nylon plates) to reciprocate up and down outside the water pipe wall and inside the shell through pushing rods to pull ash scraping devices.

Each group of the ash scraping devices of the cooler can be provided with a hydraulic station for two groups of hydraulic oil cylinders, one group of ash scraping devices can be lifted, the other group of ash scraping devices push down, the powder material is horizontally mixed and stirred up and down, and the heat exchange between the powder material and the cooling water pipe is more sufficient. Therefore, the pressure on the periphery of the cooling box caused by lifting or pushing down the scraper frame can be reduced, and the ash scraping device runs stably.

Because the oil cylinder dragging the scraper device moves up and down, the pushing position of the oil cylinder pushing rod to the scraper device is deviated to the upper part of the scraper device, and the push rod sealing device of the ash scraping device is arranged at the upper material-free position of the cooling box, so that the sealing problem is easy to solve.

In the operation of the cooler, powder entering the cooler box body rolls, flows and mixes under the up-and-down reciprocating stirring of the air tank gasification and ash scraping device, the ash scraping device scrapes condensed adherends on the wall of the cooling water pipe and the inner wall of the box body shell, the higher heat exchange efficiency between the gasified powder, the cooling water pipe and the shell is ensured, the heat dissipation process of the powder is realized, and the cooling water from the cooling water outlet pipe is returned to the cooling tower after cooling the cooler box body shell again for recycling. And the Roots blower is used for pneumatic cooling, so that the powder plays a role in comprehensive cooling.

If the external dimension and structure of the cooler are properly changed under the condition that the site space position allows, the height of the cooler is increased to be two times or more, the height of the cooler body and the length of a cooling water pipe are greatly increased, namely, the heat exchange area of the cooling water pipe, the cooler body and powdery materials is increased, the cooler body is divided into two units, a partition plate is added in the middle of the cooler body, a material channel is arranged at the lower part of the partition plate, the materials enter the cooler body from a feeding hole and enter another space through the bottom of the partition plate, so that the materials form flow from top to bottom and from bottom to top under the dragging of an air charging box gasification and mechanical ash scraping device, the upper layer short circuit is prevented, the residence time of the materials in the cooler body is prolonged, the heat exchange efficiency is increased, and the cooling effect can be better. This structure will cool better.

Compared with the prior art, the utility model has the following advantages: the utility model has reasonable design, vertically and uniformly distributed cooling water pipes, sealed push rods and easy treatment, and can cool the box body shell by spraying water or an annular circulating water jacket, thereby having high heat exchange efficiency and obviously reducing the temperature of powder. The cooler has low power consumption and has the functions of saving energy and reducing consumption. The ash removing device drives the oil cylinders to synchronously control two groups of oil cylinders up and down through the hydraulic station, has small ash removing resistance, can not generate a clamping phenomenon, and has stable operation and novel ash removing mode. The coolers can also be applied in series in each group, so that the cooling efficiency is improved.

Drawings

FIG. 1 is a front view of a cooler of the present utility model;

FIG. 2 is a side view of the cooler of the present utility model;

FIG. 3 is a top view of the cooler of the present utility model;

FIG. 4 is a front view of a plan view of an air tank, air bars, and cooling water pipes;

FIG. 5 is a diagram of a cooler housing profile and sump arrangement;

FIG. 6 is a front view of the cooler ash scraper;

FIG. 7 is a top view of the ash scraper;

FIG. 8 is a diagram of a two-half nylon plate, slot-adjustable construction;

FIG. 9 is an adjustable construction diagram of a nylon plate with a strip-shaped edge;

FIG. 10 is a front elevation view of a chiller in elevation;

FIG. 11 is a side elevation view of a chiller in elevation;

FIG. 12 is a front view of a high mechanical ash scraper of the cooler;

fig. 13 is a top view of a cooler add-on mechanical ash scraping device.

In the figure: 1-a cooling machine box body; 2-a feed inlet; 3-a water outlet; 4-cooling water pipes; 5-cooling water pipe sealing device; 6-movable joint; 7-a hydraulic cylinder; 8-an oil cylinder bracket; 9-a water inlet; 10-spraying and cooling device; 11-a discharge hole; 12-an air charging box; 13-a main air inlet pipe; 14-bronchi; 15-a mechanical ash scraping device; 16-limit switch; 17-push rod; 18-sealing means; 19-a circulating water jacket cooling device; 20-a dust collection port; 21-a slag removal port; 22-an inflatable rod; 23-long strip nylon plate; 24-an elongated platen; 25-a platen bolt; 26-clamping grooves; 27-clamping groove base plates; 28-clamping groove pressing plates; 29-nylon plate; 30-pressing plates; 31-nylon plate bolts; 32-clamping groove pressing plate bolts; 33-clamping groove cushion blocks; 34-a sink; 35-a water collecting tank.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, the disclosure of which is incorporated herein by reference as is commonly understood by reference.

Those skilled in the art will recognize that equivalents of the specific embodiments described, as well as those known by routine experimentation, are intended to be encompassed within the present application.

As shown in fig. 1-5, a mechanical ash scraping powdery material cooler comprises a cooler box 1, wherein a feed inlet 2, a discharge outlet 11 and a dust collecting port 20 are arranged on the side wall of the cooler box 1, a plurality of slag removing ports 21 are arranged at intervals on the lower part of the front surface of the cooler box 1, a plurality of cooling water pipes 4 are vertically and uniformly arranged in the cooler box 1, a mechanical ash scraping device 15 is transversely arranged on the outer wall of each cooling water pipe 4, and the mechanical ash scraping device 15 is connected with a hydraulic cylinder 7 fixed on the upper part of the cooler box 1; as shown in fig. 1, a box body outer shell spray cooling device 10 is arranged outside a cooling box body 1, the box body outer shell spray cooling device 10 is a cooling spray water pipe arranged on the box body outer shell, a water tank 34 is arranged at the edge of the bottom of the cooling box body 1, the terminal of the water tank 34 is connected with a water tank 35, and the water tank 35 is connected with a cooling tower.

As shown in fig. 5, a housing circulating water jacket cooling device 19 is arranged outside the cooling machine box body 1. The shell circulating water jacket cooling device 19 is a cooling water circulating water jacket welded on a frame plate and a side plate of the cooling machine box body 1, and the cooling water circulating water jacket is connected with a cooling tower.

The bottom of the cooler box 1 is provided with an air charging box 12 with an air permeable layer, the lower part of the air charging box 12 or the side wall of the cooler box 1 is provided with a main air inlet pipe 13, branch air inlet pipes 14 are arranged on the main air inlet pipe 13 at intervals, the air charging box 12 is connected with the main air inlet pipe 13 through the branch air inlet pipes 14, and the end part of the main air inlet pipe 13 is connected with the air outlet of the Roots blower; the air charging box is supplied with air by the Roots blower through a main air inlet pipe 13 and a bronchus 14, and the main air inlet pipe 13 is arranged below or on the side surface of the cooler box.

The mechanical ash scraping device 15 is a nylon plate 29 and a strip scraper 23 which are arranged on an ash scraping device bracket; the mechanical ash scraping device 15 is connected with a hydraulic oil cylinder 7 arranged on the upper cover of the cooling machine box body 1 to push a push rod 17, and the push rod 17 is pushed to drive the mechanical ash scraping device 15 to reciprocate up and down on the wall of the cooling water pipe 4.

As shown in fig. 1-5, more than 1 group of ash scraping devices 15 are uniformly arranged in the length direction of the outer wall of the cooling water pipe 4 in the cooling machine box 1; the cooling water pipes 4 in the box body are vertically arranged uniformly at equal intervals, the upper end and the lower end are required to be provided with accurate holes, and the deviation is ensured to be in an allowable range. The cooling water pipe 4 is installed through the holes with equal distribution from top to bottom, a sealing device is arranged at the reinforcing structure passing through the upper casing part and is fixedly connected with the elbow joint, and the lower reinforcing structure is fixedly welded and fixedly connected with the elbow. The cooling water pipe uses a seamless pipe, and the inside of the cooling box is not required to be connected in a loose joint, a pipe hoop, a flange, an elbow, welding and other connection modes so as to avoid water leakage in the box.

As shown in fig. 6-9, the scraping plate of the mechanical ash scraping device 15 is two half nylon plates 29 sleeved on the outer wall of the cooling water pipe 4, and the nylon plates are temperature-resistant nylon plates, so that the mechanical ash scraping device is wear-resistant, high-temperature-resistant and temperature-resistant at more than 150 ℃. The nylon plate 29 is connected with two pressing plates 30 by bolts 31 for fixation, the other ends of the pressing plates 30 are arranged in corresponding clamping grooves 26 on the ash scraping device bracket, and gaps are reserved between the clamping grooves 26 and the nylon plate, so that the phenomenon of blocking between the nylon plate and the pipe wall during ash scraping is avoided; the clamping groove 26 is fixedly connected by a clamping groove pressing plate 28 through a bolt 32;

as shown in fig. 6-9, the long nylon plate 23 is connected by a long pressing plate and a bolt, and is fixed on the edge of the ash scraping device bracket, the bolt holes on the long nylon plate 23 are long hole structures for adjusting the gap between the long nylon plate and the inner wall, the gap can be adjusted, and the long nylon plate is designed for specially cleaning the condensate on the inner walls of the frame plate and the side plate of the cooler box body, so that the purpose of ensuring good heat exchange efficiency between the powdery material and the cooler box body is achieved. Both the two halves of nylon plate 29 and the long nylon plate 23 are temperature-resistant nylon plates.

The material in the box is gasified at the plenum box 12 and the mechanical ash scraping device 15 reciprocates from top to bottom and pulls down, and the flow of tumbling guarantees that powdery material and condenser tube 4 fully contact and carries out the heat exchange, scrapes ash device 15 and can clear up the condensation ash on the condenser tube wall box inner wall, prevents to form the heat preservation on pipe wall and the box inner wall, guarantees that powdery material and condenser tube 4 and box inner wall have good heat exchange. Moisture is discharged through the dust collection port 20 after the powder is cooled, and the cleaned adhesive material is discharged out of the machine body along with the cooled powder through the discharge port 11.

The cooling water pipes 4 are positioned and fixed in the cooling machine box 1 through positioning holes on the shell of the cooling machine box 1, the cooling water pipes 4 are vertically and vertically arranged with equal intervals, the cooling water pipes 4 are installed in and penetrate through the upper shell of the cooling machine box 1 through the positioning holes which are equally distributed from top to bottom, and are connected with the elbow joints, so that the ash scraping device is conveniently taken out, and the maintenance is convenient. The cooling water pipe 4 passes through the lower casing and is welded and fixed with a reinforcing structure, and is connected and welded and fixed with the elbow; a cold water inlet 9 is formed in the upper part of one end of the cooler box 1, the water inlet 9 is connected with a cooling water tower, and a cold water outlet 3 is formed in the upper part of the other end of the cooler box 1; a water temperature meter is respectively arranged on the cooling water pipes at the cold water inlet 9 and the cold water outlet 3; the cooling water pipe 4 is a seamless pipe, and no loose joint, pipe hoop, flange, elbow or welded connection exists in the cooling box body 1. The water pipes at the water inlet 9 and the water outlet 3 are respectively provided with a water temperature meter, the water inlet and outlet temperature can be detected, and the performance of the cooler can be mastered according to the temperature difference. The water supply temperature of the circulating water is less than or equal to 25 ℃ so as to meet the cooling use requirement.

The water inlet 9 is provided with a pressure gauge and a flow meter. The cooling circulating water is preferably softened water in the cooling tank, and enters the cooler through the pipeline pump and the valve, so that the pressure gauge and the flow gauge are arranged at the water inlet, the pressure is controlled to be more than 0.2MPa, and the water supply quantity meets the use requirement.

Circulating cooling water in the cooling tower outside the cooling machine box body 1 enters the cooling water pipe 4 in the cooling machine through a pump, a valve and a cooling water pipe water inlet 9 outside the cooling machine box plate, the cooling water fully contacts gasified materials in the cooling machine box body 1 through the cooling water pipe 4 for heat exchange, the gasified materials are cooled, the cooling water after heat exchange can enter a water spraying pipe through a cooling water pipe water outlet 3, after being sprayed into the cooling machine box body shell, enters a water collecting tank, returns to the cooling tower and is recycled. The circulating water jacket can be welded on the shell of the cooling machine box body, and cooling water from the water outlet enters the circulating water jacket and then returns to the cooling tower. The purpose is that the shell is cooled, so that the heat exchange between the shell and the powdery material is more sufficient.

A plurality of groups of cooling water pipes are uniformly distributed in the space of the box body of the cooling machine, the cooling water pipes are vertically arranged, a plurality of groups of ash scraping devices are uniformly arranged on the outer wall of each cooling water pipe and used for cleaning condensed and adhered objects on the pipe wall, when the ash scraping devices do up-and-down reciprocating work, powder which just flows into the box body can be mixed with lower powder through stirring of the scraping devices, so that part of the upper powder can also enter the lower part, the lower powder can also be discharged after being mixed with part of hot materials, and the heat exchange between the powder and the cooling water pipes is more complete.

The scraping plate group is formed by sleeving a nylon plate on the pipe wall and connecting a pressing plate by bolts and is arranged in the clamping groove, and certain gaps are reserved among the nylon plate, the pressing plate and the clamping groove. The upper part of the cooler is provided with two groups of hydraulic cylinders which drive the scraping plate (nylon plate) to reciprocate up and down outside the pipe wall through a pushing rod to pull the ash scraping device.

The stroke position of the hydraulic oil cylinders 7 is controlled by a limit switch 16, the hydraulic oil cylinders 7 are divided into two groups, and a push rod 17 of the hydraulic oil cylinders 7 and a sealing device 18 of the cooler box 1 are arranged at a material-free position above the box. Because the oil cylinder dragging the scraper device moves up and down, the pushing position of the oil cylinder pushing rod to the ash scraping device is deviated to the upper part of the scraper device, and the push rod sealing device of the ash scraping device is arranged at the upper material-free position of the cooling box, so that the sealing problem is easy to solve, two-point power is selected, and the scraper device operates more stably.

In operation, powder entering the box body of the cooler rolls, flows and mixes under the up-and-down reciprocating stirring of the air charging box gasification and ash scraping device, the ash scraping device scrapes condensed and adhered matters on the wall of the cooling water pipe and the inner wall of the box body, the higher heat exchange efficiency between gasified powder and the cooling water pipe as well as between gasified powder and the inner wall of the box body is ensured, the heat dissipation process of the powder is realized, cooling water with increased heat absorption temperature in the cooling water pipe returns to the cooling tower, and the cooled powder is recycled. And the Roots blower is used for pneumatic cooling, so that the powder plays a role in comprehensive cooling.

Example 2: as shown in fig. 10-13, this configuration may be more effective in cooling where the site space location permits. The external dimension and the structure of the cooler are properly changed, the height of the cooler is increased to be two times or more, the height of the cooler body and the length of the cooling water pipe are greatly increased, namely, the heat exchange area of the cooling water pipe, the cooler body and powdery materials is increased, the cooler body is divided into two units, a partition plate is added in the middle, a material channel is arranged at the lower part of the partition plate, the material enters the box body from a feed inlet and enters another space through the bottom of the partition plate, the material flows from top to bottom and from bottom to top under the dragging of an air charging box gasification and mechanical ash scraping device, the formation of an upper layer short circuit is prevented, the retention time of the material in the box body is prolonged, the heat exchange efficiency is increased, and the cooling effect can be better.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The utility model provides a powder material cooler is scraped to machinery, is equipped with feed inlet (2), discharge gate (11), top including the lateral wall and is equipped with dust collection port (20), and the positive lower part interval sets up cooler box (1) of a plurality of clear cinder notch (21), its characterized in that: a plurality of cooling water pipes (4) are vertically and uniformly arranged in the cooling machine box (1), a mechanical ash scraping device (15) is transversely arranged on the outer wall of each cooling water pipe (4), and each mechanical ash scraping device (15) is connected with a hydraulic oil cylinder (7) fixed at the upper part of the cooling machine box (1); a box body outer shell spray cooling device (10) or an outer shell circulating water jacket cooling device (19) is arranged outside the cooling box body (1), an air charging box (12) with an air permeable layer is arranged at the bottom of the cooling box body (1), a main air inlet pipe (13) is arranged at the lower part of the air charging box (12) or on the side wall of the cooling box body (1), branch air pipes (14) are arranged on the main air inlet pipe (13) at intervals, the air charging box (12) is connected with the main air inlet pipe (13) through the branch air pipes (14), and the end part of the main air inlet pipe (13) is connected with an air outlet of the Roots blower;

The mechanical ash scraping device (15) is a nylon plate (29) and a strip-shaped scraping plate (23) which are arranged on the ash scraping device bracket; the mechanical ash scraping device (15) is connected with a hydraulic oil cylinder (7) arranged on the upper cover of the cooling machine box body (1) to push a push rod (17), and the push rod (17) is pushed to drive the mechanical ash scraping device (15) to reciprocate up and down on the wall of the cooling water pipe (4).

2. A mechanical ash scraping powder material cooler as defined in claim 1, wherein: and the flange joints between the frame plates at the two ends of the cooler box body (1) and the air boxes (12), the two sides of the cooling water pipe (4) and the two rows of air boxes (12) are respectively provided with an air inflation rod (22) for fully gasifying materials in the cooler box body (1).

3. A mechanical ash scraping powder material cooler as defined in claim 1, wherein: the cooling water pipes (4) are positioned and fixed in the cooling machine box body (1) through positioning holes on the machine shell of the cooling machine box body (1), the cooling water pipes (4) are vertically arranged with equal intervals, and the cooling water pipes (4) are installed through the positioning holes which are uniformly distributed up and down and penetrate through an upper machine shell water pipe fixing and reinforcing structure arranged on the cooling machine box body (1); the external connection part of the cooling water pipe (4) and the shell of the cooling machine box body (1) is fixedly connected by a U-shaped elbow; a cold water inlet (9) is formed in the upper part of one end of the cooler box (1), the cold water inlet (9) is connected with a cooling water tower, and a cold water outlet (3) is formed in the upper part of the other end of the cooler box (1); a water temperature meter is respectively arranged on the cooling water pipes at the cold water inlet (9) and the cold water outlet (3);

The part of the cooling water pipe (4) extending out of the cooler box body (1) is fixedly connected with the shell of the cooler box body (1) by a sealing device (5), and the upper part of the cooling water pipe is connected with the U-shaped elbow by a movable joint; the cooling water pipe (4) is welded with the reinforcing structure of the lower part of the shell of the cooling machine box body (1) and is welded with a U-shaped elbow, and the lowest end of the U-shaped elbow is provided with a drainage structure.

4. A mechanical ash scraping powder material cooler as defined in claim 1, wherein: the box body shell spray cooling device (10) is a cooling spray water pipe arranged on the box body shell, a water tank (34) is arranged at the edge of the bottom of the box body (1) of the cooling machine, the terminal of the water tank (34) is connected with a water collecting tank (35), and the water collecting tank (35) is connected with a cooling tower.

5. A mechanical ash scraping powder material cooler as defined in claim 1, wherein: the shell circulating water jacket cooling device (19) is characterized in that a cooling water circulating water jacket is welded on a machine frame plate and a side plate of the cooling machine box body (1), and the cooling water circulating water jacket is connected with a cooling tower.

6. A mechanical ash scraping powder material cooler as defined in claim 1, wherein: at least 1 group of mechanical ash scraping devices (15) are uniformly arranged on the length direction of the outer wall of the cooling water pipe (4) in the cooling machine box body (1); the mechanical ash scraping device (15) is two half nylon plates (29) sleeved on the outer wall of the cooling water pipe (4), the nylon plates (29) are two pressing plates (30) fixed by nylon plate bolts (31), the other ends of the pressing plates (30) are arranged in corresponding clamping grooves (26) on the ash scraping device support, and gaps are reserved between the clamping grooves (26) and the nylon plates; the clamping groove (26) is fixedly connected by a clamping groove pressing plate (28) through a clamping groove pressing plate bolt (32);

The long nylon plate (23) is fixed on the edge of the ash scraping device bracket through a pressing plate bolt (25) and a long pressing plate (24), and the bolt hole on the long nylon plate (23) is of a long hole structure for adjusting the gap between the long nylon plate and the inner wall.

7. A mechanical ash scraping powder material cooler as defined in claim 6, wherein: the two halves of nylon plates (29) and the strip nylon plates (23) are both temperature-resistant nylon plates.

8. A mechanical ash scraping powder material cooler as defined in claim 1, wherein: the cooling water pipe (4) is a seamless pipe, and no loose joint, pipe hoop, flange, elbow or welded connection exists in the cooling box body (1).

9. A mechanical ash scraping powder material cooler as defined in claim 1, wherein: the stroke position of the hydraulic oil cylinders (7) is controlled by a limit switch (16), the hydraulic oil cylinders (7) are in two groups, and a push rod (17) of the hydraulic oil cylinders (7) and a sealing device (18) of the cooler box body (1) are arranged at a material-free position above the box body.

10. A mechanical ash scraping powder material cooler as defined in claim 1, wherein: the cooler box (1) is divided into an upper unit and a lower unit, a partition plate is arranged in the middle of the cooler box, a material channel is arranged at the lower part of the partition plate, and materials enter the box from a feed inlet of an upper space and enter the upper space through a channel at the bottom of the partition plate.