CN114772902B

CN114772902B - Low-temperature heat pump sludge drying device

Info

Publication number: CN114772902B
Application number: CN202210707832.1A
Authority: CN
Inventors: 赵相相; 孙乐乐; 陈奕名; 王建成; 孔德尊; 王士臣
Original assignee: Cecep Runda Yantai Environmental Protection Co ltd
Current assignee: Cecep Runda Yantai Environmental Protection Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-08-23
Anticipated expiration: 2042-06-22
Also published as: CN114772902A

Abstract

The invention belongs to the technical field of sludge treatment equipment, and discloses a low-temperature heat pump sludge drying device which comprises a box body, wherein a heat pump is fixedly arranged on one side of the box body, the bottom of the heat pump is fixedly connected with one end of an air outlet pipe, the other end of the air outlet pipe is fixedly connected with an air outlet pipe arranged at the bottom of the box body, and the upper part of the heat pump is fixedly connected with one end of an air inlet pipe. According to the sludge drying device, the rotating roller, the first rotating shaft, the first hollow sleeve shaft and the contact pin are arranged, sludge is extruded by the rotating roller and the first hollow sleeve shaft firstly, the sludge is spread on the conveying belt to be uniform in thickness, the contact pin is used for punching holes in the extruded sludge, circulation between the inside of the sludge and the air in the box body can be achieved, meanwhile, hot air output from the air outlet pipe is discharged through the first rotating shaft, the first hollow sleeve shaft and the first through hole, circulation of high-temperature hot air in the sludge can be accelerated, and the sludge drying effect is further improved.

Description

Low-temperature heat pump sludge drying device

Technical Field

The invention belongs to the technical field of sludge treatment equipment, and particularly relates to a low-temperature heat pump sludge drying device.

Background

The sludge drying is also called sludge dewatering, and refers to a process of removing most of water content from sludge through the action of percolation or evaporation, and the like, wherein the low-temperature heat pump sludge drying device is particularly widely applied, hot air is directly generated through a heat pump, the hot air is conducted into an evaporation box body, the hot air directly acts on a conveying belt arranged in the box body, sludge moves on the conveying belt, water vapor in the sludge can be directly evaporated, and then the water vapor is rapidly discharged through a dehumidification system, so that the purpose of drying products is achieved.

However, the low-temperature heat pump sludge drying device in the prior art has the following defects in the actual use process: first of all. Mud is at the in-process that the conveyer belt removed, because the mode of discharge gate row material leads to mud to be difficult to evenly distributed on the conveyer belt, and easy thickness is uneven moreover, and among the prior art, the in-process of sludge drying, the position of contacting with the conveyer belt is difficult to effectively be heated simultaneously, further leads to the sludge drying uneven, and the mummification effect is poor.

Disclosure of Invention

The invention aims to provide a low-temperature heat pump sludge drying device to solve the problems in the background technology.

In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a low temperature heat pump sludge drying device, the power distribution box comprises a box body, one side fixed mounting of box has the heat pump, the one end of the bottom fixedly connected with outlet duct of heat pump, the play tuber pipe at the bottom half is installed to the other end fixedly connected with of outlet duct, the one end of the upper portion fixedly connected with intake pipe of heat pump, the air inlet strip on box upper portion is installed to the other end fixedly connected with of intake pipe, the inside of box is equipped with a plurality of from the top down parallel arrangement's conveyer belt, the opposite and discharge end position of top conveyer belt of adjacent conveyer belt transmission direction corresponds with below conveyer belt feed end position, the upper portion fixed mounting of box has the corresponding feed inlet with the superiors conveyer belt feed end, the discharge end of lower floor's conveyer belt is provided with the discharge gate with box fixed connection, a serial communication port: one side that the conveyer belt is close to the feed end is provided with the live-rollers, the top of live-rollers is provided with the first pivot that cup joints with the box activity, the gas flow way has been seted up to the inside of first pivot, first hollow sleeve pipe has been cup jointed in the outside activity of first pivot, the one end of the first connecting pipe of first hollow sheathed tube bottom fixedly connected with, the first connector of the other end fixedly connected with of first connecting pipe, first hollow sheathed tube outside is provided with the first hollow sleeve axle with first pivot fixed connection, a plurality of groups of contact pins of the outside fixedly connected with of first hollow sleeve axle, the inside first through-hole that is linked together with first hollow sleeve axle that sets up of contact pin, be provided with baffle device between the discharge end of conveyer belt and the box inner wall.

Preferably, two groups of second rotating shafts are arranged on one side, away from the rotating roller, of the conveying belt, a second hollow sleeve shaft is fixedly connected to the outer side of the second rotating shaft, four groups of raised heads which are arranged in an equal circumference mode are fixedly connected to the outer side of the second hollow sleeve shaft, a second through hole is formed in each raised head, a second hollow sleeve which is movably sleeved with the second rotating shaft is arranged on the inner side of the second hollow sleeve shaft, a second connector is fixedly connected to the upper portion of each second hollow sleeve, and a balancing weight is fixedly connected to the bottom of each second hollow sleeve.

Preferably, the baffle device comprises a bottom plate fixedly connected with the box body and a supporting rod movably sleeved with the box body, one end of a supporting spring is fixedly connected to one side of the bottom plate, the other end of the supporting spring is fixedly connected with an annular plate, an inclined material guide baffle is arranged at one end, close to the conveyor belt, of the supporting rod, a threaded rod is fixedly connected to the other end of the supporting rod, and a hexagon nut is connected to the middle of the threaded rod in a threaded connection mode.

Preferably, the rotating roller can rotate synchronously with the first rotating shaft, one end of the first rotating shaft extends out of the box body, a guide pipe communicated with the air outlet pipe is arranged between the first rotating shaft and the air outlet pipe, and the first connecting head is in contact with and sealed with the inner wall of the first hollow sleeve shaft.

Preferably, the second rotating shaft is hollow, a motor is arranged at one end of the second rotating shaft, which extends out of the box body, and an air guide pipe communicated with the air outlet pipe is arranged at the other end of the second rotating shaft.

Preferably, the conveyer belt is made for the gas permeability cloth that toughness is high, the conveyer belt is connected with solitary motor respectively.

The invention has the following beneficial effects:

1. according to the sludge drying device, the rotating roller, the first rotating shaft, the first hollow sleeve shaft and the contact pin are arranged, sludge is extruded by the rotating roller and the first hollow sleeve shaft firstly, so that the sludge is spread on the conveying belt to be uniform in thickness, the contact pin can open holes in the extruded sludge, circulation between the inside of the sludge and the air in the box body can be realized, meanwhile, hot air output from the air outlet pipe is discharged through the first rotating shaft, the first hollow sleeve shaft and the first through hole, the circulation of high-temperature hot air in the sludge can be accelerated, and the sludge drying effect is further improved.

2. According to the invention, through the arrangement of the second rotating shaft, the second hollow sleeve shaft and the convex head, along with the movement of sludge towards the discharge end of the conveying belt, the sludge is protruded upwards under the rotating action of the second hollow sleeve shaft and the convex head, so that the sludge can jump and is prevented from being adhered to the conveying belt, and meanwhile, hot air discharged from the second through hole can not only increase the overturning degree of the sludge, but also accelerate the circulation of air around the sludge in the jumping process of the sludge, so that the drying efficiency of the sludge is further improved.

3. According to the invention, through the arrangement of the baffle device, when sludge falls from the discharge end of the conveyor belt, the sludge firstly falls onto the inclined guide baffle, and the sludge impacts the guide baffle, so that the support spring is elastically deformed, the sludge is prevented from directly falling onto the conveyor belt and being buffered, the sludge is prevented from directly impacting the conveyor belt to directly cause adhesion between the sludge and the conveyor belt, the sludge is ensured to be in a loose state, the air circulation between the sludge is ensured, and the drying efficiency is further improved.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged schematic view of the structure A of the present invention;

FIG. 3 is an enlarged view of the structure B of the present invention;

FIG. 4 is an enlarged view of the structure C of the present invention;

FIG. 5 is a schematic view of the second hollow sleeve shaft assembly of the present invention.

In the figure: 1. a box body; 2. a heat pump; 201. an air outlet pipe; 3. an air outlet pipe; 4. an air inlet pipe; 5. an air inlet strip; 6. a conveyor belt; 7. a feed inlet; 8. a discharge port; 9. a rotating roller; 10. a first rotating shaft; 11. a gas flow channel; 12. a first hollow sleeve; 13. a first connecting pipe; 14. a first connector; 15. a first hollow sleeve shaft; 16. inserting a pin; 17. a first through hole; 18. a second rotating shaft; 19. a second hollow sleeve shaft; 20. a raised head; 21. a second through hole; 22. a second hollow sleeve; 23. a second connector; 24. a balancing weight; 25. a baffle device; 251. a base plate; 252. a support bar; 253. a support spring; 254. an annular plate; 255. a material guide baffle plate; 256. a threaded rod; 257. a hexagonal nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figures 1, 2 and 4, the embodiment of the invention provides a low-temperature heat pump sludge drying device, which comprises a box body 1, wherein a heat pump 2 is fixedly arranged on one side of the box body 1, one end of an air outlet pipe 201 is fixedly connected to the bottom of the heat pump 2, the other end of the air outlet pipe 201 is fixedly connected with an air outlet pipe 3 arranged at the bottom of the box body 1, one end of an air inlet pipe 4 is fixedly connected to the upper part of the heat pump 2, an air inlet strip 5 arranged at the upper part of the box body 1 is fixedly connected to the other end of the air inlet pipe 4, a plurality of conveying belts 6 which are arranged in parallel from top to bottom are arranged in the box body 1, the conveying directions of the adjacent conveying belts 6 are opposite, the discharging end position of the upper conveying belt 6 corresponds to the feeding end position of the lower conveying belt 6, a feeding port 7 corresponding to the feeding end of the uppermost conveying belt 6 is fixedly arranged at the upper part of the box body 1, and a discharging port 8 fixedly connected with the box body 1 is arranged at the discharging end of the lowest conveying belt 6, a rotating roller 9 is arranged on one side of the conveyor belt 6 close to the feeding end, a first rotating shaft 10 movably sleeved with the box body 1 is arranged above the rotating roller 9, a gas flow channel 11 is arranged inside the first rotating shaft 10, a first hollow sleeve 12 is movably sleeved outside the first rotating shaft 10, one end of a first connecting pipe 13 is fixedly connected to the bottom of the first hollow sleeve 12, a first connecting head 14 is fixedly connected to the other end of the first connecting pipe 13, a first hollow sleeve shaft 15 fixedly connected with the first rotating shaft 10 is arranged outside the first hollow sleeve 12, a plurality of groups of contact pins 16 are fixedly connected to the outside of the first hollow sleeve shaft 15, first through holes 17 communicated with the inside of the first hollow sleeve shaft 15 are arranged inside the contact pins 16, a baffle device 25 is arranged between the discharging end of the conveyor belt 6 and the inner wall of the box body 1, the baffle device 25 comprises a bottom plate 251 fixedly connected with the box body 1 and a supporting rod 252 movably sleeved with the box body 1, one side of the bottom plate 251 is fixedly connected with one end of a supporting spring 253, the other end of the supporting spring 253 is fixedly connected with an annular plate 254, one end of the supporting rod 252 close to the conveyor belt 6 is provided with an inclined material guide baffle 255, the other end of the supporting rod 252 is fixedly connected with a threaded rod 256, and the middle part of the threaded rod 256 is in threaded connection with a hexagonal nut 257.

As shown in fig. 3 and 5, two sets of second rotating shafts 18 are disposed on one side of the conveyor belt 6 away from the rotating roller 9, a second hollow sleeve shaft 19 is fixedly connected to the outer side of the second rotating shaft 18, four sets of raised heads 20 which are arranged in an equal circumference are fixedly connected to the outer side of the second hollow sleeve shaft 19, second through holes 21 are disposed inside the raised heads 20, a second hollow sleeve 22 movably sleeved with the second rotating shaft 18 is disposed on the inner side of the second hollow sleeve shaft 19, a second connecting head 23 is fixedly connected to the upper portion of the second hollow sleeve 22, a counterweight 24 is fixedly connected to the bottom of the second hollow sleeve 22, the counterweight 24 can ensure that the second connecting head 23 disposed on the second hollow sleeve 22 is always in a vertically upward state, the second connecting head 23 is ensured to be always communicated with the second through hole 21 of the raised head 20 which is vertically upward in the second hollow sleeve shaft 19, hot air loss is avoided, and hot air concentration is ensured, the flow rate of hot gas is ensured, thereby improving the sludge drying effect.

Wherein, the live-rollers 9 can rotate with first pivot 10 is synchronous, the one end of first pivot 10 stretches out box 1, and with be provided with the pipe that is linked together between the outlet duct 201, first connector 14 contacts and seals with first hollow sleeve shaft 15 inner wall, make the thickness that is spread on conveyer belt 6 by mud after live-rollers 9 and the extrusion of first hollow sleeve shaft 15 even, and contact pin 16 carries out the trompil to the mud of extrusion department, can make and form the circulation between the inside and the box inside air of mud, the steam of output will loop through first pivot 10 in the outlet duct 201 simultaneously, first hollow sleeve 12, first through-hole 17 is discharged, can accelerate the inside high temperature steam circulation of mud, further improve the mummification effect of mud.

Wherein, second pivot 18 is the cavity form, and the one end that second pivot 18 stretches out box 1 is provided with the motor, and the other end of second pivot 18 be provided with the outlet duct 201 between be provided with the air duct that is linked together, guarantee that second connector 23 is linked together with the second through-hole 21 of vertical bellied 20 up in the hollow sleeve axle 19 of second all the time, avoid steam to run off, guarantee the concentration of steam simultaneously, guarantee the velocity of flow of steam to improve the sludge drying effect.

Wherein, conveyer belt 6 is made for the gas permeability cloth that toughness is high, and conveyer belt 6 is connected with solitary motor respectively, can make steam pierce through conveyer belt 6 and mud bottom contact, and guarantees that mud can not bond on conveyer belt 6 surfaces.

The working principle and the using process are as follows: sludge is input to the upper part of the first layer of the conveyor belt 6 from the feed port 7, the conveyor belt 6 drives the sludge to move, the sludge is firstly extruded by the rotating roller 9 and the first hollow sleeve shaft 15, the sludge is uniformly spread on the conveyor belt 6, the contact pin 16 is used for perforating the sludge at the extrusion part, circulation between the inside of the sludge and the air in the box body can be realized, meanwhile, hot air output from the air outlet pipe 201 is discharged through the first rotating shaft 10, the first hollow sleeve 12 and the first through hole 17, high-temperature hot air circulation in the sludge can be accelerated, the drying effect of the sludge is further improved, the sludge can be upwards protruded under the rotating action of the second hollow sleeve shaft 19 and the raised head 20 along with the movement of the sludge towards the discharge end of the conveyor belt 6, the sludge can be jumped, the sludge is prevented from being adhered to the conveyor belt 6, and meanwhile, the turning degree of the sludge can be increased by the hot air discharged from the second through hole 21, the circulation of air around the sludge in the beating process can be accelerated, and the drying efficiency of the sludge is further improved;

when mud drops from 6 discharge ends of conveyer belt, at first can drop on the guide baffle 255 of slope, mud can strike guide baffle 255 to lead to holding spring 253 to take place elastic deformation, not only can avoid mud directly to drop on conveyer belt 6, cushion it, avoid mud directly to strike conveyer belt 6 and directly cause bonding between the two, and can guarantee that mud is in loose state moreover, guarantee the circulation of air between the mud, further improve mummification efficiency.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A low-temperature heat pump sludge drying device comprises a box body (1), a heat pump (2) is fixedly installed on one side of the box body (1), one end of an air outlet pipe (201) is fixedly connected to the bottom of the heat pump (2), an air outlet pipe (3) installed at the bottom of the box body (1) is fixedly connected to the other end of the air outlet pipe (201), one end of an air inlet pipe (4) is fixedly connected to the upper portion of the heat pump (2), an air inlet strip (5) installed at the upper portion of the box body (1) is fixedly connected to the other end of the air inlet pipe (4), a plurality of conveying belts (6) which are arranged in parallel from top to bottom are arranged in the box body (1), the transmission directions of the adjacent conveying belts (6) are opposite, the discharge end of the upper conveying belt (6) corresponds to the feed end of the lower conveying belt (6), a feed inlet (7) corresponding to the feed end of the uppermost conveying belt (6) is fixedly installed on the upper portion of the box body (1), the discharge end of lower floor's conveyer belt (6) is provided with discharge gate (8) with box (1) fixed connection, its characterized in that: a rotating roller (9) is arranged on one side, close to the feeding end, of the conveyor belt (6), a first rotating shaft (10) movably sleeved with the box body (1) is arranged above the rotating roller (9), a gas flow channel (11) is formed in the first rotating shaft (10), a first hollow sleeve (12) is movably sleeved on the outer side of the first rotating shaft (10), one end of a first connecting pipe (13) is fixedly connected to the bottom of the first hollow sleeve (12), a first connecting head (14) is fixedly connected to the other end of the first connecting pipe (13), a first hollow sleeve shaft (15) fixedly connected with the first rotating shaft (10) is arranged on the outer side of the first hollow sleeve (12), a plurality of groups of contact pins (16) are fixedly connected to the outer side of the first hollow sleeve shaft (15), a first through hole (17) communicated with the inner portion of the first hollow sleeve shaft (15) is formed in the contact pin (16), and a baffle device (25) is arranged between the discharge end of the conveyor belt (6) and the inner wall of the box body (1).

2. The low-temperature heat pump sludge drying device according to claim 1, wherein: one side of the conveying belt (6) far away from the rotating roller (9) is provided with two groups of second rotating shafts (18), the outer side of each second rotating shaft (18) is fixedly connected with a second hollow sleeve shaft (19), the outer side of each second hollow sleeve shaft (19) is fixedly connected with four groups of raised heads (20) which are arranged in a circle, the inner parts of the raised heads (20) are provided with second through holes (21), the inner side of each second hollow sleeve shaft (19) is provided with a second hollow sleeve (22) which is movably sleeved with the second rotating shaft (18), the upper part of each second hollow sleeve (22) is fixedly connected with a second connector (23), and the bottom of each second hollow sleeve (22) is fixedly connected with a balancing weight (24).

3. The low-temperature heat pump sludge drying device according to claim 1, wherein: baffle device (25) include bottom plate (251) with box (1) fixed connection and bracing piece (252) that cup joints with box (1) activity, the one end of one side fixedly connected with supporting spring (253) of bottom plate (251), the other end fixedly connected with annular plate (254) of supporting spring (253), the one end that bracing piece (252) are close to conveyer belt (6) is provided with guide baffle (255) of slope, and the other end fixedly connected with threaded rod (256) of bracing piece (252), the middle part threaded connection of threaded rod (256) has hexagon nut (257).

4. The low-temperature heat pump sludge drying device according to claim 1, wherein: the rotating roller (9) and the first rotating shaft (10) rotate synchronously, one end of the first rotating shaft (10) extends out of the box body (1), a guide pipe communicated with the air outlet pipe (201) is arranged between the first rotating shaft and the first rotating shaft, and the first connecting head (14) is in contact with and sealed with the inner wall of the first hollow sleeve shaft (15).

5. The low-temperature heat pump sludge drying device according to claim 2, wherein: the second rotating shaft (18) is hollow, a motor is arranged at one end, extending out of the box body (1), of the second rotating shaft (18), and an air guide pipe communicated with the air outlet pipe (201) is arranged at the other end of the second rotating shaft (18).

6. The low-temperature heat pump sludge drying device according to claim 1, wherein: the conveying belt (6) is made of air-permeable cloth with high toughness, and the conveying belt (6) is connected with an independent motor respectively.