CN219072165U

CN219072165U - Automatic water accumulation and dust flushing dual blocking clearing device for water film dust removal bin of closed dryer

Info

Publication number: CN219072165U
Application number: CN202223060360.XU
Authority: CN
Inventors: 袁建莹; 朱长建; 车超; 刘亮亮; 梁一
Original assignee: Jingjin Equipment Co Ltd
Current assignee: Jingjin Equipment Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-05-26
Anticipated expiration: 2032-11-18

Abstract

The utility model relates to an automatic water accumulation and dust flushing dual blocking clearing device of a water film dust removal bin of a closed dryer, which has the main points of the innovation scheme that: the block removing device is additionally arranged and comprises a cylinder seat, a lifting cylinder, a valve closing adjusting rod, a lifting valve rod and a water outlet valve cover; the cylinder seat and the lifting cylinder are sequentially connected into a whole, are arranged on the top of the water film dedusting bin and are connected with the PLC program control system in parallel, other parts are positioned in the water film dedusting bin and are aligned with the water outlet, and the water outlet valve cover is normally covered on the water outlet; the lifting cylinder drives the lifting valve rod and the water outlet valve cover to move up and down; the automatic valve closing can be carried out to ensure that the water film dedusting bin stores water and is covered to prevent the blockage of the water outlet, and the lower end of the valve rod is used for flushing dirt on the upper edge of the water outlet in the valve closing process, so that the automatic timing valve opening can be carried out to flush the sludge on the bottom of the bin and the dirt on the water outlet, thereby realizing the self-cleaning of the bottom of the bin and the water outlet; overcomes the technical prejudice that the water outlet of the wet and narrow water film dust removal bin cannot be automatically blocked, and improves the automation level and the production efficiency of the water film dust removal mechanism.

Description

Automatic water accumulation and dust flushing dual blocking clearing device for water film dust removal bin of closed dryer

Technical Field

The utility model belongs to the technical field of closed filter cake dryers, and relates to a water film dust removal bin water outlet blockage removing device of a water film dust removal mechanism.

Background

The dryer is mechanical equipment for reducing the water content of materials by utilizing heat energy; the filter cake dryer is equipment for continuously drying and subsequently treating a filter cake formed by the operation of a filter press; the closed filter cake dryer is a totally closed structure environment-friendly normal pressure continuous convection type filter cake dryer; the device mainly comprises a closed carriage, a filter cake crushing and strip cutting mechanism, a double-layer net belt material conveying mechanism, a high-low temperature drying system, a dry material spiral output mechanism, a water film dedusting mechanism and a PLC program control system; the method is suitable for drying the material with the water content of 55% -83% into the material with the water content of 3% -45% (the drying rate is freely adjustable).

The closed carriage body comprises a filter cake drying box and an airflow heat exchange carriage; the filter cake drying box is used for arranging a filter cake crushing and strip cutting mechanism on the filter cake drying box, and is internally provided with a double-layer mesh belt conveying mechanism and a dry material spiral output mechanism to prevent dust from diffusing and polluting the environment (dust is necessarily generated in the working process of the filter cake drying box); the airflow heat exchange compartment is used for internally arranging main equipment (a thermal circulation mechanism and a dehumidifying mechanism) and a water film dedusting mechanism (except a circulating water supply device) of the high-low temperature drying system. The airflow circulation path is: the method comprises the steps of circulating air heater, filter cake drying compartment, airflow heat exchange compartment, water film dedusting mechanism, heat recoverer, circulating air cooler, evaporation type refrigerator, heat recoverer, condensation type heater and circulating air heater.

The water film dust removing mechanism comprises a water film dust removing device (a water spraying film forming device) and a circulating water supply device; the water film dust removing device is arranged at the upper part in the airflow heat exchange compartment, the circulating water supply device is arranged outside the airflow heat exchange compartment, and the water film dust removing device and the circulating water supply device are communicated through a pipeline; the water film dust removing device comprises a water film dust removing bin, a water outlet and a water spraying pipe, water is sprayed into the closed heat exchange box to form a film, and the water film is adsorbed on dust to enable the dust to settle, so that a large amount of dust is prevented from entering the air flow heat exchange box to block a dust filter and an air convection channel and influence the heat exchange effect; the circulating water supply device is a multi-stage water purifying and circulating water supply device and comprises a bracket with a base, a high-level purified water tank, a middle-level purified water tank, a low-level sewage draining tank, an electric water supply pump, a sewage draining submersible pump, a water supply pipeline and a sewage draining pipeline; the circulating water can bring dust sediment in the water spraying film forming device into the high-level purifying water tank. The water flow circulation path is: the water-saving type dust-removing device comprises a middle-position purifying water tank, an electric water supply pump, a water spray pipe, a water film dust-removing bin, a water outlet of the water film dust-removing bin, a high-position purifying water tank and a middle-position purifying water tank; sediment in the high-level purification water tank and the middle-level purification water tank enters the low-level sewage draining tank through a sewage draining pipeline, and the submersible sewage pump periodically discharges sewage in the low-level sewage draining tank.

The existing water film dust removal device has the following defects: because the hot air flow in the filter cake drying box is provided with a large amount of dust and a small amount of short fibers in the filter cake, when the hot air flow passes through the water film dust removing device, the dust and the short fibers carried by the hot air flow are adsorbed by the water film and are settled to the bottom of the water film dust removing bin, a layer of sludge is gradually accumulated, and the dust and the short fibers are accumulated to form dirt in a water outlet after a long time; because the water quantity of the circulating water forming the water film is smaller and the flow speed is slower, the circulating water can not flush the sludge at the bottom of the water bin and dirt at the water outlet out of the water film dedusting bin (namely, the self-cleaning can not be realized); therefore, the water outlet of the water film dedusting bin is easy to be blocked and overflowed, and the overflow of the water film dedusting bin leads to the failure of electric appliances in the airflow heat exchange compartment, so that potential safety hazards exist; because the environment of the water film dust removal bin is moist and the space is narrow, the technical prejudice of 'the water film dust removal bin water outlet cannot be automatically blocked' exists for a long time commonly in the field of people; the water film dust removal bin water outlet is manually cleaned and blocked, continuous production is influenced by stopping, and particularly, the closed airflow heat exchange compartment space is limited, and manual blockage cleaning is very difficult.

Disclosure of Invention

The utility model aims to overcome the defect of a built-in water film dust removing device of the existing closed filter cake dryer, and solve the problems that the water film dust removing device lacks a self-cleaning function, a water outlet of a water film dust removing bin is easy to block and overflow to cause electrical appliance faults, and the water outlet is difficult to manually clear and block; how to overcome the technical problems of automatic blockage clearing of a water outlet in a wet and narrow water film dust removal bin, and provides an automatic water accumulation and dust flushing dual blockage clearing device of a water film dust removal bin of a closed dryer.

The utility model solves the problems in the prior art by adopting a brand new technical scheme that: the utility model provides an automatic ponding dust-flushing dual clear stifled device of closed desiccator water film dust removal storehouse (hereinafter: automatic ponding clear stifled device), general technical scheme's main points are, and innovative overall structure compares with prior art promptly, and it has outstanding substantial characteristics that lie in: an automatic accumulated water blocking cleaning device is additionally arranged, namely, the accumulated water (water storage) automatic valve closing timing valve of the water film dedusting bin is opened to flush the sludge at the bottom of the bin, and the water outlet is flushed with dirt by using a valve rod and the accumulated water is flushed with dirt, and the blocking cleaning device comprises a lifting cylinder, a cylinder seat, a valve closing adjusting rod, a lifting valve rod and a water outlet valve cover; the water outlet valve cover is arranged at the lower end of the lifting valve rod to form a lifting valve rod with a valve; the valve closing adjusting rod is used for connecting the lifting cylinder piston rod and the lifting valve rod with the valve, so that an automatic accumulated water clearing device is formed, and the structure is simple; the lifting cylinder of the automatic accumulated water blocking cleaning device is arranged on the top of the water film dedusting bin and connected with the PLC program control system in parallel, and the lifting valve rod with the valve is positioned in the water film dedusting bin and is centered with the water outlet; under the control of a PLC program control system, a piston rod of a lifting cylinder extends out to drive a valve cover of a water outlet to automatically close the water outlet, meanwhile, the lower end of a lifting valve rod loosens dirt on the water outlet, and circulating water is gradually accumulated in a water film dedusting bin; when 1/4 bin is fully filled with circulating water in the water film dedusting bin (ensuring that an air flow channel of the water film dedusting bin is not submerged), the piston rod of the lifting cylinder contracts to drive the valve cover of the water outlet to automatically open the water outlet, a large amount of accumulated water in the water film dedusting bin flows out of the water outlet in a concentrated manner, and as a large amount of accumulated water has certain pressure and potential energy, the flowing water automatically washes away (takes away) sludge at the bottom of the water film dedusting bin, and simultaneously washes away dirt at the water outlet, so that the water outlet is automatically blocked, and the water film dedusting bin is convenient to use; therefore, the problems that the water film dust removing device lacks a self-cleaning function, a water outlet of a water film dust removing bin is easy to block, and electric appliance faults are caused by overflow are solved, and the water outlet is difficult to manually clear; how to solve the technical problems of automatic blockage removal of the water outlet in a wet and narrow water film dust removal bin.

The specific design scheme of the utility model is as follows: (1) The lifting cylinder is an SDA32 multiplied by 30 type ultrathin cylinder for driving a lifting valve rod, the stroke of a piston rod of the lifting cylinder is 30mm, and the cylinder is connected with an air source pipeline and an electromagnetic valve of the air source pipeline; (2) The cylinder seat is a square plate type cylinder seat, a piston rod hole is formed in the center of the cylinder seat, mounting holes are formed in four corners of the cylinder seat, and the length and the width of the cylinder seat are larger than those of the top hole of the water film dedusting bin; (3) The valve closing adjusting rod is an adjusting rod for adjusting the tightness of a water outlet valve cover to be closed when the automatic accumulated water blocking removing device is assembled, and comprises an adjusting rod main body and a compression nut, and is made of stainless steel; the upper end of the adjusting rod main body is provided with an internal thread cylinder matched with a cylinder piston rod, the middle of the adjusting rod main body is provided with a spanner square section matched with a spanner, and the lower end of the adjusting rod main body is provided with an external thread section matched with a valve rod screw hole; the compression nut is arranged at the lower end of the adjusting rod main body to form a valve closing adjusting rod; (4) The upper end of the lifting valve rod is provided with a valve rod screw hole matched with the external thread section of the valve closing adjusting rod, the lower end of the lifting valve rod is provided with external threads, the length of the lifting valve rod corresponds to the height of the water film dedusting bin, and stainless steel materials are adopted; (5) The water outlet valve cover is a round soft water outlet valve cover, a valve rod hole is formed in the center of the water outlet valve cover, the diameter of the valve rod hole is larger than that of the water outlet, and polyurethane materials are adopted.

The connection relation of the main parts of the utility model is as follows: for convenience of explanation, a water film dust removal bin closely related to the utility model is additionally arranged; (1) the assembly of the present utility model: the lifting cylinder is vertically arranged on the cylinder seat, the valve closing adjusting rod is arranged at the lower end of the cylinder piston rod, the lifting valve rod is arranged at the lower end of the valve closing adjusting rod, and the water outlet valve cover is arranged at the lower end of the lifting valve rod, so that an automatic accumulated water blocking cleaning device is formed; (2) the final assembly of the present utility model: the lifting valve rod with the valve of the automatic accumulated water blocking cleaning device stretches into the water film dedusting bin and is centered with the water outlet, the cylinder seat is arranged on the top hole of the water film dedusting bin, the lifting cylinder is positioned on the top of the water film dedusting bin and is connected with the air source pipeline and the electromagnetic valve thereof, and the electromagnetic valve is communicated with the PLC program control system; (3) debugging of the present utility model: under the condition that a piston rod of the lifting cylinder extends out, the valve closing adjusting rod is adjusted to enable the valve cover of the water outlet to close the water outlet, and the compression nut is screwed; the lifting cylinder stretches or contracts to drive the valve cover of the water outlet to close or open the water outlet; (4) dynamic relationship of the present utility model: under the control of a PLC program control system, a piston rod of the lifting cylinder stretches out to drive a valve cover of a water outlet to automatically close the water outlet so as to store water (the water outlet is normally closed), and when circulating water is accumulated in 1/4 bin in the water film dedusting bin (ensuring that an air flow channel of the water film dedusting bin is not submerged), the piston rod of the lifting cylinder contracts to drive the valve cover of the water outlet to automatically open the water outlet so as to drain water and clean dirt.

Dust deposition and self-cleaning process: (1) deposition of dust and anti-blocking: when the drain port is closed to store water, (1.1) deposition of dust: circulating water gradually accumulates in the water film dedusting bin, hot air flows through the water film dedusting device, dust and short fibers carried by the hot air flow are adsorbed by the water film and then settled to the bottom of the water film dedusting bin and the valve cover of the water outlet, and a layer of sludge is gradually accumulated; (1.2) drain port blocking prevention: because the water outlet valve cover is covered on the water outlet (the water outlet is mainly blocked on the water outlet, and the vertical section of the water outlet is not easy to block due to the action of gravity), the blocking caused by the fact that dust and short fibers form dirt on the water outlet is effectively prevented; meanwhile, in the valve closing process, the lower end of the lifting valve rod loosens dirt (possibly formed in the drainage process) on the upper edge of the water outlet so as to facilitate flushing; (2) self-cleaning of the bin bottom and the water outlet: when the drain is open, the valve cover is cleaned (2.1): the dirt on the valve cover of the water outlet is cleaned in the process of opening the cover; (2.2) flushing the bottom of the bin and the water outlet: a large amount of accumulated water in the water film dedusting bin flows out from the water outlet in a concentrated manner, and as a large amount of accumulated water has certain pressure and potential energy, the flowing water automatically washes away (takes away) sludge at the bottom of the water film dedusting bin and washes away dirt at the water outlet; the drain outlet is covered with an anti-blocking cover, and the two modes of dirt loosening by the valve rod and dirt washing by accumulated water are utilized to thoroughly clear and block, so that the drain outlet is automatically cleared and blocked.

The utility model provides an automatic water accumulation dust flushing dual blocking clearing device of a water film dust removal bin of a closed dryer, which has the outstanding substantial characteristics and remarkable progress that: by additionally arranging the automatic accumulated water cleaning and blocking device, the valve can be automatically closed to enable the water film dust removal bin to store water and cover the water film dust removal bin to prevent the water outlet from being blocked, the lower end of the valve rod is used for flushing dirt on the upper edge of the water outlet in the valve closing process, the valve can be automatically opened at regular time to flush sludge on the bottom of the bin and dirt on the water outlet, the self-cleaning of the bottom of the bin and the water outlet is realized, and the development trend of a self-cleaning type water film dust removal mechanism of the closed filter cake dryer is represented; the technical prejudice that the water outlet of the wet and narrow water film dedusting bin cannot be automatically blocked is overcome, the automation level and the production efficiency of the water film dedusting mechanism are improved, the potential safety hazard of blocking the water outlet of the water film dedusting bin by overflow is eliminated, the failure rate of relevant heat exchange equipment is reduced, the continuous and safe production of the closed filter cake dryer is ensured, and the technical effect is remarkable.

Drawings

FIG. 1 is a schematic diagram of an automatic water accumulation and removal device according to the present utility model.

Fig. 2 is a schematic diagram of a valve closing adjusting rod of the automatic accumulated water blocking cleaning device.

FIG. 3 is a schematic view of a lifting valve rod of the automatic accumulated water blocking cleaning device.

Fig. 4 is a side view of the assembly of the automatic accumulated water blocking cleaning device and the corresponding water film dust removing device.

FIG. 5 is a front view of the assembly of the automatic accumulated water blocking cleaning device and the corresponding water film dust removing device.

FIG. 6 is a schematic diagram of the water film dust removing mechanism and the closed filter cake dryer assembly according to the utility model.

Reference numerals: the device comprises a lifting cylinder, a cylinder seat, a 3-closing valve adjusting rod, a 4-lifting valve rod, a 5-water outlet valve cover, a 6-internal thread cylinder, a 7-wrench square section, an 8-external thread section, a 9-compression nut, a 10-valve rod screw hole, an 11-automatic accumulated water blocking cleaning device (the utility model), a 12-water film dedusting bin, a 13-water outlet, a 14-water film dedusting device, a 15-heat exchange bin, a 16-PLC program control system (comprising a PLC program control cabinet) and a 17-multistage circulating water supply device.

14-water film dust removing device, including 12-water film dust removing bin and 13-water outlet, spray pipe.

The lifting valve rod with the valve comprises a 4-lifting valve rod and a 5-water outlet valve cover.

Detailed Description

The following describes the technical solution in the embodiment of the utility model with reference to the drawings in the embodiment of the automatic water accumulation dust flushing dual blocking cleaning device of the water film dust removal bin of the closed dryer, and the described embodiment is only a part of the preferred embodiments of the utility model, but not all the embodiments. Based on the embodiments of the present utility model, all other embodiments that are not creative, such as automatic accumulated water blocking cleaning devices with the same automatic water storage and cleaning modes and similar structures, made by those skilled in the art, belong to the protection scope of the present utility model.

Example 1

The utility model provides an automatic ponding towards dirt dual clear stifled device 11 of stifled device (simply: automatic ponding clear stifled device) of closed desiccator water film dust removal storehouse, the main points of the general implementation scheme of innovation are: an automatic accumulated water blocking cleaning device 11 is additionally arranged, namely, the automatic valve closing accumulated water (water storage) timing valve opening of the water film dedusting bin is used for flushing the sludge at the bottom of the bin, and the valve rod is used for flushing dirt and accumulated water for flushing dirt at the water outlet, and the blocking cleaning device comprises a lifting cylinder 1, a cylinder seat 2, a valve closing adjusting rod 3, a lifting valve rod 4 and a water outlet valve cover 5; the water outlet valve cover 5 is arranged at the lower end of the lifting valve rod 4 to form a lifting valve rod with a valve; the valve closing adjusting rod 3 is used for connecting a piston rod of the lifting cylinder 1 with a lifting valve rod with a valve to form an automatic accumulated water blocking cleaning device 11, and the structure is simple; the lifting cylinder 1 of the automatic accumulated water blocking cleaning device 11 is arranged on the top of the water film dedusting bin 12 and connected with the PLC program control system 16 in parallel, and the lifting valve rod with the valve is positioned in the water film dedusting bin 12 and is centered with the water outlet 13; under the control of a PLC program control system 16, a piston rod of the lifting cylinder 1 extends out of the valve cover 5 of the driving water outlet to automatically close the water outlet 13, meanwhile, the lower end of the lifting valve rod 4 flushes dirt on the water outlet 13, and circulating water gradually accumulates in the water film dedusting bin 12; when 1/4 bin is fully filled with circulating water in the water film dedusting bin 12 (ensuring that an air flow channel of the water film dedusting bin 12 is not submerged), a piston rod of the lifting cylinder 1 contracts to drive the water outlet valve cover 5 to automatically open the water outlet 13, a large amount of accumulated water in the water film dedusting bin 12 flows out of the water outlet 13 in a concentrated manner, and as a large amount of accumulated water has certain pressure and potential energy, the flowing water automatically washes away (takes away) sludge at the bottom of the water film dedusting bin 12, and simultaneously washes away dirt of the water outlet 13, so that the water outlet is automatically blocked, and the water film dedusting bin is convenient to use; the technical problems that the water film dust removal device 14 lacks a self-cleaning function, the water outlet 13 of the water film dust removal bin 12 is easy to block, and the electric appliance is difficult to break down due to overflow, and the water outlet 13 is difficult to clear by hand, so that the technical bias is overcome, and the automatic blocking removal of the water outlet 13 is realized in the wet and narrow water film dust removal bin 12; specific embodiments are described in detail below.

The lifting cylinder 1 is an SDA32 multiplied by 30 type ultrathin cylinder for driving a lifting valve rod, the stroke of a piston rod of the lifting cylinder is 30mm, and the lifting cylinder 1 is connected with an air source pipeline and an electromagnetic valve of the air source pipeline; the lifting cylinder 1 is vertically arranged on the cylinder seat 2 and is used for driving the lifting valve rod 4 to move up and down.

The cylinder seat 2 is a square plate type cylinder seat 2, a piston rod hole is formed in the center of the square plate type cylinder seat 2, mounting holes are formed in four corners of the square plate type cylinder seat, and the length and the width of the square plate type cylinder seat are larger than the width of a top hole of the water film dust removal bin 12; the cylinder seat 2 is arranged on the top hole of the water film dust removal bin 12 and is used for vertically installing the lifting cylinder 1 and the hanging type valve lifting valve rod.

The valve closing adjusting rod 3 is an adjusting rod for adjusting the closing tightness of the water outlet valve cover 5 when the automatic accumulated water blocking removing device 11 is assembled, and comprises an adjusting rod main body and a compression nut 9, and is made of stainless steel; the adjusting rod comprises an adjusting rod main body, a valve rod screw hole 10 and a valve rod screw hole, wherein the upper end of the adjusting rod main body is provided with an internal thread cylinder 6 matched with a cylinder piston rod, the middle of the adjusting rod main body is provided with a spanner square section 7 matched with a spanner (tool), and the lower end of the adjusting rod main body is provided with an external thread section 8 matched with the valve rod screw hole 10; the compression nut 9 is arranged at the lower end of the adjusting rod main body to form a valve closing adjusting rod 3; the valve closing adjusting rod 3 is arranged at the lower end of the cylinder piston rod and is used for adjusting the tightness of the water outlet valve cover 5 for closing the water outlet 13.

The upper end of the lifting valve rod 4 is provided with a valve rod screw hole 10 matched with the external thread section 8 of the valve closing adjusting rod 3, the lower end of the lifting valve rod is provided with external threads, the length of the lifting valve rod is corresponding to the height of the water film dedusting bin 12, and stainless steel materials are adopted; the lifting valve rod 4 is arranged at the lower end of the valve closing adjusting rod 3 and is used for transmitting the power of the lifting cylinder 1 and driving the water outlet valve cover 5 to move up and down, and dirt (dirt possibly formed in the water discharging process) on the upper edge of the water outlet 13 is washed loose by the lower end of the lifting valve rod 4 in the valve closing process so as to be convenient to wash.

The water outlet valve cover 5 is a round soft water outlet valve cover 5, the center of the water outlet valve cover is provided with a valve rod hole, the diameter of the valve rod hole is larger than that of the water outlet 13, and polyurethane materials are adopted; the water outlet valve cover 5 is arranged at the lower end of the lifting valve rod 4 and normally covers the water outlet 13, and is used for opening and closing the water outlet 13, and the cover prevents dust and short fibers from forming dirt on the water outlet 13 to cause blockage.

The final assembly of the utility model: the lifting valve rod with the valve of the automatic ponding clear-blocking device 11 stretches into the water film dedusting bin 12 and is centered with the water outlet 13, the cylinder seat 2 is arranged on the top hole of the water film dedusting bin 12, the lifting cylinder 1 is positioned on the top of the water film dedusting bin 12, the cylinder is connected with an air source pipeline and an electromagnetic valve thereof, and the electromagnetic valve is communicated with the PLC program control system 16.

The utility model is used for debugging: in the state that the piston rod of the lifting cylinder 1 extends out, the valve closing adjusting rod 3 is adjusted to enable the water outlet valve cover 5 to close the water outlet, and the compression nut 9 is screwed; the piston rod of the lifting cylinder 1 stretches out or contracts to drive the water outlet valve cover 5 to close or open the water outlet 13.

The main working process of the utility model comprises the following steps: under the control of the PLC program control system 16, the piston rod of the lifting cylinder 1 stretches out to drive the water outlet valve cover 5 to automatically close the water outlet 13 to store water (the water outlet 13 is normally closed), and when circulating water is accumulated in 1/4 bin in the water film dedusting bin 13 (ensuring that the air flow channel of the water film dedusting bin 12 is not submerged), the piston rod of the lifting cylinder 1 contracts to drive the water outlet valve cover 5 to automatically open the water outlet 13 to drain water and clean dirt.

Dust deposition process and self-cleaning principle of the water film dust removal bin 12: (1) deposition of dust and anti-blocking: when the drain port 13 is closed to store water, (1.1) deposition of dust: circulating water gradually accumulates in the water film dedusting bin 12, hot air flows through the water film dedusting device 14, dust and short fibers carried by the hot air flow are adsorbed by the water film and then settled to the bottom of the water film dedusting bin 12 and the water outlet valve cover 5 to gradually accumulate into a layer of sludge; (1.2) blocking prevention of drain port 13: because the water outlet valve cover 5 covers the water outlet 13 (the water outlet 13 is mainly blocked on the water outlet, and the vertical section of the water outlet valve cover is not easy to block due to the action of gravity), the blocking caused by the fact that dust and short fibers form dirt on the water outlet 13 is effectively prevented; at the same time, in the valve closing process, the lower end of the lifting valve rod 4 washes dirt (possibly formed in the drainage process) on the upper edge of the drainage port 13 loose so as to be convenient for flushing; (2) self-cleaning the bin bottom and the water outlet 13: when the drain opening 13 is opened to drain, (2.1) the valve cover is cleaned: the dirt on the water outlet valve cover 5 is cleaned during the uncapping movement process; (2.2) flushing the bottom of the bin and the drain opening 13: a large amount of accumulated water in the water film dedusting bin 12 intensively flows back to the multi-stage circulating water supply device 17 from the water outlet 13, and as a large amount of accumulated water has certain pressure and potential energy, the flowing water automatically washes away (takes away) sludge at the bottom of the water film dedusting bin 12, and simultaneously washes away dirt of the water outlet 13; the drain outlet 13 is covered with an anti-blocking cover, and the drain outlet 13 is automatically blocked by thoroughly blocking the drain outlet in two modes of flushing dirt loosening and accumulated water flushing by using the lifting valve rod 4.

The utility model provides an automatic water accumulation dust flushing dual blocking clearing device 11 of a water film dust removal bin of a closed dryer, which has the outstanding substantial characteristics and remarkable progress that: by additionally arranging the automatic accumulated water cleaning and blocking device 11, the water film dust removing bin 12 can be automatically closed to store water and cover the water film dust removing bin to prevent the water outlet 13 from being blocked, the lower end of the lifting valve rod 4 can be automatically opened to clean dirt on the upper edge of the water outlet 13, the self-cleaning of the bin bottom and the water outlet 13 is realized, and the development trend of a self-cleaning water film dust removing mechanism of the closed filter cake dryer is represented; the technical prejudice that the water outlet 13 of the wet and narrow water film dedusting bin 12 cannot be automatically blocked is overcome, the automation level and the production efficiency of the water film dedusting mechanism are improved, the potential safety hazard that the water outlet 13 blocks the water film dedusting bin 12 and overflows is eliminated, the failure rate of relevant heat exchange equipment is reduced, the continuous and safe production of the closed filter cake dryer is ensured, and the technical effect is remarkable.

Claims

1. An automatic water accumulation and dust flushing dual blocking clearing device of a water film dust removal bin of a closed dryer comprises a lifting cylinder, a cylinder seat, a valve closing adjusting rod, a lifting valve rod and a water outlet valve cover; the method is characterized in that: the lifting cylinder is an SDA32 multiplied by 30 type ultrathin cylinder for driving a lifting valve rod, the stroke of a piston rod of the lifting cylinder is 30mm, and the cylinder is connected with an air source pipeline and an electromagnetic valve of the air source pipeline; the cylinder seat is a square plate type cylinder seat, a piston rod hole is formed in the center of the cylinder seat, mounting holes are formed in four corners of the cylinder seat, and the length and the width of the cylinder seat are larger than those of the top hole of the water film dedusting bin; the valve closing adjusting rod is an adjusting rod for adjusting the tightness of a water outlet valve cover to be closed when the automatic accumulated water blocking removing device is assembled, and comprises an adjusting rod main body and a compression nut, and is made of stainless steel; the upper end of the lifting valve rod is provided with a valve rod screw hole matched with the external thread section of the valve closing adjusting rod, the lower end of the lifting valve rod is provided with external threads, the length of the lifting valve rod corresponds to the height of the water film dedusting bin, and stainless steel materials are adopted; the water outlet valve cover is a round soft water outlet valve cover, a valve rod hole is formed in the center of the water outlet valve cover, the diameter of the valve rod hole is larger than that of the water outlet, and polyurethane materials are adopted; the interconnection relationship is: the lifting cylinder is vertically arranged on the cylinder seat, the valve closing adjusting rod is arranged at the lower end of the cylinder piston rod, the lifting valve rod is arranged at the lower end of the valve closing adjusting rod, and the water outlet valve cover is arranged at the lower end of the lifting valve rod, so that the automatic accumulated water dust flushing dual blocking cleaning device is formed; the lifting valve rod with a valve of the automatic water accumulation and dust flushing dual-blocking cleaning device stretches into the water film dedusting bin and is centered with the water outlet, the cylinder seat is arranged on the top hole of the water film dedusting bin, the lifting cylinder is positioned on the top of the water film dedusting bin, the cylinder is connected with the air source pipeline and the electromagnetic valve thereof, and the electromagnetic valve is communicated with the PLC program control system; the automatic valve closing can be used for enabling the water film dedusting bin to store water and cover the water film dedusting bin to prevent the water outlet from being blocked, the lower end of the valve rod is used for flushing dirt on the upper edge of the water outlet in the valve closing process, and the automatic timing valve opening can be used for flushing dirt on the bottom of the water film dedusting bin and dirt on the water outlet, so that the self-cleaning of the bottom of the water film dedusting bin and the water outlet is realized.

2. The automatic water accumulation and dust flushing dual blocking cleaning device of a water film dust removal bin of a closed dryer according to claim 1, wherein the device is characterized in that: the valve closing adjusting rod is provided with an adjusting rod main body, the upper end of the adjusting rod main body is provided with an internal thread cylinder matched with a cylinder piston rod, the middle of the adjusting rod main body is provided with a spanner square section matched with a spanner, and the lower end of the adjusting rod main body is provided with an external thread section matched with a valve rod screw hole; the compression nut is arranged at the lower end of the adjusting rod main body to form a valve closing adjusting rod.