CN211770899U - Belt type sludge drying cold and heat isolation device - Google Patents
Belt type sludge drying cold and heat isolation device Download PDFInfo
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- CN211770899U CN211770899U CN201922278303.0U CN201922278303U CN211770899U CN 211770899 U CN211770899 U CN 211770899U CN 201922278303 U CN201922278303 U CN 201922278303U CN 211770899 U CN211770899 U CN 211770899U
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Abstract
The utility model discloses a belt type sludge drying cold and heat isolation device, which comprises a sludge drying pipeline, a sludge cooling pipeline and a rotary valve; the sludge drying pipeline is positioned above the sludge cooling pipeline, the rotary valve is connected between a blanking port of the sludge drying pipeline and a feeding port of the sludge cooling pipeline, and the rotary valve is electrically connected with a rotary valve driving motor; two high material level switches about the top of rotary valve is equipped with, and two high material level switches are equallyd divide and are connected with the driving motor of rotary valve, the driving motor of sludge drying conveyer belt and the driving motor electricity of sludge cooling conveyer belt respectively. The utility model discloses set up the high material level switch that is used for responding to sludge accumulation height in the top of rotary valve, after high material level switch triggered the response, equipment just can the bring to rest to make the maintainer in time clear up the rotary valve, can prevent the long-time jam of rotary valve, protected the normal operating of equipment effectively, avoided the damage that equipment caused because of the long-term jam operation of rotary valve.
Description
Technical Field
The utility model belongs to the technical field of sludge treatment, concretely relates to belt sludge drying cold and hot isolating device.
Background
At present, most of general biological sludge produced by municipal sewage plants is dried to form dry sludge, and the dry sludge is mixed with coal to carry out co-combustion power generation. In the drying process of the sludge, hot air is firstly used for evaporating moisture in the sludge to dry the sludge, and then cold air is used for cooling the sludge to prevent the sludge from being burnt due to overheating.
A rotary valve is typically used to isolate the hot air from the cold air between the hot air drying stage and the cold air cooling stage. The sludge is moved to the upper part of the rotary valve from the conveying equipment filled with hot air, and then falls into the conveying equipment filled with cold air from the lower part from the rotary valve. The rotating speed of the rotary valve is related to the running speed of the sludge, the sludge moves fast, and the rotary valve rotates fast. Although the hot air above and the cold air below still have a certain circulation when the sludge falls off the rotary valve, most of the gas is still isolated, so the rotary valve can play a good role in isolating the hot air from the cold air.
However, rotary valves often become clogged during operation of the equipment. The main reasons are as follows: 1. possibly, the sludge in the individual areas is not effectively dehydrated in the hot air drying stage, so that the sludge in the areas is still in a sludge state and is easily adhered to the blades of the rotary valve, thereby forming blockage; 2. there is a possibility that large impurities are mixed in the sludge, and when the large impurities fall into the rotary valve, the large impurities cannot continuously fall, so that the large impurities stay in the rotary valve for a long time, and blockage is caused. If the rotary valve is blocked and is not cleaned in time, the drying efficiency of the equipment can be reduced slightly, and the normal operation of the equipment can be influenced seriously, so that the equipment is damaged or scrapped.
SUMMERY OF THE UTILITY MODEL
The defect that exists to prior art, the utility model provides a belt sludge drying cold and hot isolating device can prevent effectively that the long-time of the rotary valve of cold and hot management department from blockking up.
For solving the technical problem, realize above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a belt type sludge drying cold-heat isolation device comprises a sludge drying pipeline for evaporating sludge moisture, a sludge cooling pipeline for reducing the temperature of sludge and a rotary valve for isolating cold air and hot air;
a sludge drying conveyor belt driven by a first conveyor belt driving motor is arranged in the sludge drying pipeline, the conveying direction of the sludge drying conveyor belt is from a feeding hole to a discharging hole of the sludge drying pipeline, and a hot air supply opening for introducing hot air is formed in the tank wall of the sludge drying pipeline; a sludge cooling conveyor belt driven by a second conveyor belt driving motor is arranged in the sludge cooling pipeline, the conveying direction of the sludge cooling conveyor belt is from a feeding hole to a discharging hole of the sludge cooling pipeline, and a cold air supply opening for introducing cold air is formed in the pipe wall of the sludge cooling pipeline;
the sludge drying pipeline is positioned above the sludge cooling pipeline, the rotary valve is connected between a blanking port of the sludge drying pipeline and a feeding port of the sludge cooling pipeline, and the rotary valve is electrically connected with a rotary valve driving motor and driven to rotate by the rotary valve driving motor; a left high material level switch and a right high material level switch which are used for sensing the sludge accumulation height above the rotary valve are arranged above the rotary valve, and the two high material level switches are respectively and electrically connected with the rotary valve driving motor, the first conveyor belt driving motor and the second conveyor belt driving motor; when arbitrary one high material level switch produces the response, rotary valve driving motor first conveyer belt driving motor reaches second conveyer belt driving motor all is in the stall state, and when two when high material level switch does not all produce the response, rotary valve driving motor first conveyer belt driving motor reaches second conveyer belt driving motor all is in the rotation state.
Furthermore, the hot air supply outlet is arranged on the pipe wall of the discharge port end of the sludge drying pipeline and is opposite to the sludge drying conveyor belt, and the cold air supply outlet is arranged on the pipe wall of the discharge port end of the sludge cooling pipeline and is opposite to the sludge cooling conveyor belt, so that the circulation direction of hot air and cold air is opposite to the movement direction of sludge all the time, convection is convenient to form, and the heat exchange rate is improved.
Further, be provided with a jam alarm indicator on the sludge drying pipeline, jam alarm indicator respectively with two high material level switch electricity is connected, works as arbitrary one when high material level switch produces the response, jam alarm indicator is in high bright state, works as two when high material level switch does not all produce the response, jam alarm indicator is in the off-state.
Furthermore, the side wall of the sludge drying pipeline close to the blanking port is provided with an access door which is convenient for cleaning the rotary valve.
Furthermore, the access door is connected with the side wall of the sludge drying pipeline through a hinge, and the access door is tightly closed through rotating a locking handle.
Furthermore, a circle of sealing strip is arranged around the edge of the inner side face of the access door to prevent odor in the sludge drying pipeline from overflowing.
Further, be provided with the tool to lock on the access door, so that it is right the management and control of access door.
Furthermore, the pipe walls of the sludge drying pipeline and the sludge cooling pipeline are provided with observation windows which are convenient for observing the sludge conveying condition.
The utility model discloses a theory of operation does:
whenever the rotary valve blocks up because of being adhered with wet sludge or dropping large foreign matters, the sludge blanking speed of the sludge drying pipeline blanking port can be slowed down or even can not fall down, thereby leading the sludge to be continuously accumulated above the rotary valve. When accumulational mud highly triggers arbitrary high material level switch and responds, rotary valve driving motor, first conveyer belt driving motor and second conveyer belt driving motor stall immediately, and rotary valve, sludge drying conveyer belt and sludge cooling conveyer belt stall block up the warning light simultaneously and light, send the jam alarm of rotary valve to the staff.
After the jam alarm is sent, the worker firstly cuts off the power supply of the whole equipment, then immediately informs a responsible person and an overhaul personnel, after the access door is unlocked by the responsible person, the overhaul personnel enters the equipment through the access door, and clears the rotating valve which is jammed and discharges faults.
After cleaning, the responsible person closes the access door and locks, and then the operating personnel switches on the power again. After the power supply is switched on, the high material level switch firstly senses whether sludge is still accumulated above the rotary valve or not, if not, the rotary valve driving motor, the first conveyor belt driving motor and the second conveyor belt driving motor are recovered to rotate immediately, and the rotary valve, the sludge drying conveyor belt and the sludge cooling conveyor belt start to operate again to wait for next cleaning.
The utility model has the advantages that:
1. the utility model discloses a cold and hot isolating device reforms transform current belt sludge drying, has add the high material level switch that is used for responding to the sludge accumulation height in the top of rotary valve to after high material level switch triggers the response, equipment just can the bring to rest, thereby make the maintainer can in time clear up the rotary valve, can prevent the long-time jam of rotary valve, protected the normal operating of equipment effectively, avoided the damage that equipment caused because of the long-term jam operation of rotary valve.
2. The utility model discloses the access door has been add on the lateral wall of equipment to make the maintainer only need open the access door, alright clear up the rotary valve of jam, removed from and need the maintainer to climb into equipment and clear up or wholly dismantle the trouble of getting off the clearance with the rotary valve, improved cleaning efficiency, alleviateed intensity of labour.
3. The utility model discloses an add sealing strip and rotatory locking handle on the access door, can effectively prevent overflowing of mud stink in the equipment, protected the environment in workshop.
4. The utility model discloses set up the tool to lock on the access door, can realize the strict management and control to the access hole, prevent irrelevant personnel's use or people in disorder.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
FIG. 1 is a front view of the belt type sludge drying thermal and cold isolation device of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1 with the front sheet metal removed;
FIG. 3 is a left side view of the belt type sludge drying cold and hot isolation device of the present invention;
FIG. 4 is a schematic view of the internal structure of FIG. 3 with the left side sheet metal removed;
fig. 5 is an electrical connection schematic diagram of the belt type sludge drying cold and hot isolation device of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. The description as set forth herein is intended to provide a further understanding of the invention and forms a part of this application and the exemplary embodiments and descriptions thereof are presented for purposes of illustration and description and are not intended to limit the invention in any way.
Referring to fig. 1-5, a belt type sludge drying cold and heat isolation device comprises a sludge drying pipeline 1 for evaporating sludge moisture, a sludge cooling pipeline 2 for reducing sludge temperature, and a rotary valve 3 for isolating cold and hot air;
a sludge drying conveyor belt 5 driven by a first conveyor belt driving motor 4 is arranged in the sludge drying pipeline 1, the conveying direction of the sludge drying conveyor belt 5 is from a feeding hole to a discharging hole of the sludge drying pipeline 1, and a hot air feeding hole 6 for feeding hot air is formed in the wall of the sludge drying pipeline 1; a sludge cooling conveyor belt 8 driven by a second conveyor belt driving motor 7 is arranged in the sludge cooling pipeline 2, the conveying direction of the sludge cooling conveyor belt 8 is from a feeding hole to a discharging hole of the sludge cooling pipeline 2, and a cold air feeding hole 9 for feeding cold air is formed in the pipe wall of the sludge cooling pipeline 2;
the sludge drying pipeline 1 is positioned above the sludge cooling pipeline 2, the rotary valve 3 is connected between a blanking port of the sludge drying pipeline 1 and a feeding port of the sludge cooling pipeline 2, and the rotary valve 3 is electrically connected with a rotary valve driving motor 10 and is driven to rotate by the rotary valve driving motor 10; a left high material level switch 11 and a right high material level switch 11 which are used for sensing the sludge accumulation height above the rotary valve 3 are arranged above the rotary valve 3, and the two high material level switches 11 are respectively and electrically connected with the rotary valve driving motor 10, the first conveyor belt driving motor 4 and the second conveyor belt driving motor 7; when arbitrary high material level switch 11 produces the response, rotary valve driving motor 10 first conveyer belt driving motor 4 reaches second conveyer belt driving motor 7 all is in the stall state, and is two when high material level switch 11 does not all produce the response, rotary valve driving motor 10 first conveyer belt driving motor 4 reaches second conveyer belt driving motor 7 all is in the rotating-state.
Furthermore, the hot air supply outlet 6 is arranged on the pipe wall of the blanking port end of the sludge drying pipeline 1 and is opposite to the sludge drying conveyor belt 5, and the cold air supply outlet 9 is arranged on the pipe wall of the discharge port end of the sludge cooling pipeline 2 and is opposite to the sludge cooling conveyor belt 8, so that the circulation direction of hot air and cold air is opposite to the movement direction of sludge all the time, convection is convenient to form, and the heat exchange rate is improved.
Further, be provided with a jam alarm indicator 12 on sludge drying pipeline 1, jam alarm indicator 12 respectively with two high material level switch 11 electricity is connected, works as arbitrary one when high material level switch 11 produces the response, jam alarm indicator 12 is in the highlight state, works as two when high material level switch 11 all does not produce the response, jam alarm indicator 12 is in the off-state.
Furthermore, the side wall of the sludge drying pipeline 1 close to the blanking port is provided with an access door 13 which is convenient for cleaning the rotary valve 3.
Further, the access door 13 is connected with the side wall of the sludge drying pipeline 1 through a hinge 14, and the access door 13 is closed by rotating a locking handle 15.
Furthermore, a circle of sealing strips 16 are arranged around the edge of the inner side surface of the access door 13 to prevent odor in the sludge drying pipeline 1 from overflowing.
Further, a lock 17 is arranged on the access door 13, so that the access door 13 is conveniently controlled.
Further, the pipe walls of the sludge drying pipeline 1 and the sludge cooling pipeline 2 are both provided with observation windows 18 which are convenient for observing the sludge conveying condition.
Whenever the rotary valve 3 is blocked due to the adhesion of wet sludge or the dropping of large foreign matters, the sludge blanking speed of the blanking port of the sludge drying pipeline 1 is slowed down or even can not fall down, so that the sludge is continuously accumulated above the rotary valve 3. When accumulational mud highly triggers arbitrary one high material level switch 11 response, rotary valve driving motor 10, first conveyer belt driving motor 4 and second conveyer belt driving motor 7 stall immediately, and rotary valve 3, sludge drying conveyer belt 5 and the 8 stall of mud cooling conveyer belt block up alarm indicator 12 simultaneously and light, send rotary valve 3's jam alarm to the staff.
After the jam alarm is sent, the staff firstly cuts off the power supply of the whole equipment, then immediately informs the responsible person and the maintainer, after the access door 13 is unlocked by the responsible person, the maintainer enters the equipment through the access door 13, and clears the rotating valve 3 which is jammed and discharges the fault.
When the cleaning is completed, the person in charge closes the access door 13, locks it, and then the operator switches on the power supply again. After the power is switched on, the high material level switch 11 firstly senses whether sludge is still accumulated above the rotary valve 3 or not, if not, the rotary valve driving motor 10, the first conveyor belt driving motor 4 and the second conveyor belt driving motor 7 immediately recover to rotate, and the rotary valve 3, the sludge drying conveyor belt 5 and the sludge cooling conveyor belt 8 start to operate again to wait for next cleaning.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a belt sludge drying cold and hot isolating device which characterized in that: comprises a sludge drying pipeline (1) for evaporating sludge moisture, a sludge cooling pipeline (2) for reducing the sludge temperature and a rotary valve (3) for isolating cold air and hot air;
a sludge drying conveyor belt (5) driven by a first conveyor belt driving motor (4) is arranged in the sludge drying pipeline (1), the conveying direction of the sludge drying conveyor belt (5) is from a feeding hole to a discharging hole of the sludge drying pipeline (1), and a hot air supply opening (6) for introducing hot air is formed in the tank wall of the sludge drying pipeline (1); a sludge cooling conveyor belt (8) driven by a second conveyor belt driving motor (7) is arranged in the sludge cooling pipeline (2), the conveying direction of the sludge cooling conveyor belt (8) is from a feeding hole to a discharging hole of the sludge cooling pipeline (2), and a cold air supply opening (9) for introducing cold air is arranged on the pipe wall of the sludge cooling pipeline (2);
the sludge drying pipeline (1) is positioned above the sludge cooling pipeline (2), the rotary valve (3) is connected between a blanking port of the sludge drying pipeline (1) and a feeding port of the sludge cooling pipeline (2), the rotary valve (3) is electrically connected with a rotary valve driving motor (10), and the rotary valve driving motor (10) drives the rotary valve to rotate; a left high material level switch (11) and a right high material level switch (11) which are used for sensing the sludge accumulation height above the rotary valve (3) are arranged above the rotary valve (3), and the two high material level switches (11) are respectively and electrically connected with the rotary valve driving motor (10), the first conveyor belt driving motor (4) and the second conveyor belt driving motor (7); when arbitrary high material level switch (11) produced the response, rotary valve driving motor (10) first conveyer belt driving motor (4) reaches second conveyer belt driving motor (7) all are in the stall state, and when two high material level switch (11) all do not produce the response time, rotary valve driving motor (10) first conveyer belt driving motor (4) reach second conveyer belt driving motor (7) all are in the rotating state.
2. The belt-type sludge drying cold and heat isolation device of claim 1, which is characterized in that: the hot air supply outlet (6) is arranged on the pipe wall of the blanking port end of the sludge drying pipeline (1) and is opposite to the sludge drying conveying belt (5), the cold air supply outlet (9) is arranged on the pipe wall of the discharge port end of the sludge cooling pipeline (2) and is opposite to the sludge cooling conveying belt (8), the circulation directions of hot air and cold air are opposite to the movement direction of sludge all the time, convection is convenient to form, and the heat exchange rate is improved.
3. The belt-type sludge drying cold and heat isolation device of claim 1, which is characterized in that: be provided with one on sludge drying pipeline (1) and block up alarm indicator (12), block up alarm indicator (12) respectively with two high material level switch (11) electricity is connected, as arbitrary one when high material level switch (11) produce the response, block up alarm indicator (12) and be in high bright state, be two when high material level switch (11) do not all produce the response, block up alarm indicator (12) and be in the state of extinguishing.
4. The belt-type sludge drying cold and heat isolation device of claim 1, which is characterized in that: the side wall of the sludge drying pipeline (1) close to the blanking port is provided with an access door (13) which is convenient for cleaning the rotary valve (3).
5. The belt-type sludge drying cold and heat isolation device of claim 4, which is characterized in that: the access door (13) is connected with the side wall of the sludge drying pipeline (1) through a hinge (14), and the access door (13) is closed through a rotary locking handle (15).
6. The belt-type sludge drying cold and heat isolation device of claim 4, which is characterized in that: and a circle of sealing strip (16) is arranged around the edge of the inner side surface of the access door (13) to prevent the odor in the sludge drying pipeline (1) from overflowing.
7. The belt-type sludge drying cold and heat isolation device of claim 4, which is characterized in that: and a lockset (17) is arranged on the access door (13) so as to conveniently manage and control the access door (13).
8. The belt-type sludge drying cold and heat isolation device of claim 1, which is characterized in that: and the pipe walls of the sludge drying pipeline (1) and the sludge cooling pipeline (2) are provided with observation windows (18) which are convenient for observing the sludge conveying condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922278303.0U CN211770899U (en) | 2019-12-18 | 2019-12-18 | Belt type sludge drying cold and heat isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922278303.0U CN211770899U (en) | 2019-12-18 | 2019-12-18 | Belt type sludge drying cold and heat isolation device |
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| Publication Number | Publication Date |
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| CN211770899U true CN211770899U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922278303.0U Active CN211770899U (en) | 2019-12-18 | 2019-12-18 | Belt type sludge drying cold and heat isolation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112499932A (en) * | 2020-11-10 | 2021-03-16 | 南通爱可普环保设备有限公司 | Floating plate mud scraping and blockage removing mechanism and sludge noodle machine assembly thereof |
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2019
- 2019-12-18 CN CN201922278303.0U patent/CN211770899U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112499932A (en) * | 2020-11-10 | 2021-03-16 | 南通爱可普环保设备有限公司 | Floating plate mud scraping and blockage removing mechanism and sludge noodle machine assembly thereof |
| CN112499932B (en) * | 2020-11-10 | 2022-11-25 | 南通爱可普环保设备有限公司 | Floating plate mud scraping and blockage removing mechanism and sludge noodle machine assembly thereof |
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