A sludge drying machine with dust removal structure

Abstract

The present invention discloses a sludge drying machine with a dust removal structure, comprising a treatment barrel and a positioning bracket, wherein the positioning bracket is sleeved on the treatment barrel and fixedly connected to the treatment barrel, and further comprising a pretreatment device, wherein the pretreatment device is arranged at the top of the inner wall of the treatment barrel, wherein the pretreatment device is fixed to the top of the inner wall of the treatment barrel through a support frame, wherein the pretreatment device is used to preliminarily dry the sludge; a pelletizing device, wherein the pelletizing device is arranged at a portion of the treatment barrel located below the pretreatment device, wherein the pelletizing device is fixedly connected to the inner wall of the treatment barrel, wherein the pelletizing device is used to pelletize the material preliminarily dried by the pretreatment device; and a drying device, wherein the drying device is arranged at a portion of the treatment barrel located below the pelletizing device, and the present invention relates to the technical field of sludge drying. The sludge drying machine with a dust removal structure can conveniently increase the contact area between the sludge and the hot air, thereby improving the drying efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of sludge drying, in particular to a sludge drying machine with a dust removal structure. Background Art

[0002] The moisture content of sludge after mechanical dehydration is still above 78%. Sludge thermal drying can further remove moisture from dehydrated sludge and reduce the volume of sludge through heat transfer between sludge and heat medium. After drying, the odor, pathogens, viscosity, instability, etc. of sludge are significantly improved. It can be used as fertilizer, soil conditioner, building materials, landfill, alternative energy, or converted into oil and gas and then further refined into chemical products. Sludge thermal drying equipment can be divided into three types according to the contact method between heat medium and sludge: direct heating type, indirect heating type and direct / indirect combined drying type. According to the feeding method of equipment and product form, it can be roughly divided into two categories: one is to use a dry material backmixing system, wet sludge is mixed with a certain proportion of dry sludge before feeding, and the product is spherical particles; the other is to feed wet sludge directly, and the product is mostly powder.

[0003] At present, sludge drying usually directly dries the sludge with high water content. Due to the high water content of the sludge, the sludge is in close contact with each other, and the heat is not easy to conduct away, resulting in low drying efficiency. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sludge drying machine with a dust removal structure, comprising a treatment barrel and a positioning bracket, wherein the positioning bracket is sleeved on the treatment barrel and fixedly connected to the treatment barrel, and further comprising

[0005] A pretreatment device, which is arranged on the top of the inner wall of the treatment tube and is fixed to the top of the inner wall of the treatment tube by a support frame, and is used for preliminary drying of the sludge;

[0006] A pelletizing device, which is arranged in the part of the treatment barrel below the pretreatment device, and is fixedly connected to the inner wall of the treatment barrel, and is used to pelletize the material preliminarily dried by the pretreatment device;

[0007] A drying device, which is arranged in the part of the treatment cylinder below the pelletizing device, and is fixedly connected to the bottom of the inner wall of the treatment cylinder. The drying device is used to dry the granular material cut by the pelletizing device, so as to increase the contact area between the sludge and the hot air, thereby improving the drying efficiency;

[0008] The dust removal mechanism is arranged on both sides of the processing tube and is connected to the inside of the processing tube. The dust removal mechanism is used to absorb dust inside the processing tube.

[0009] Preferably, the pretreatment device includes a processing spherical shell, one side of the processing spherical shell is fixedly connected to a driving motor, the driving shaft of the driving motor passes through the processing spherical shell and extends to the inside of the processing spherical shell, the end of the driving shaft of the driving motor is fixedly connected to a control device, the side of the control device away from the driving motor is fixedly connected to a stirring roller, the top of the processing spherical shell is fixedly connected to an extrusion screen, one side of the processing spherical shell is connected to an air pipe, the inner wall of the air pipe is slidably connected to an inflation nozzle, the end of the inflation nozzle away from the air pipe is connected to an external air pump, one side of the inflation nozzle is fixedly connected to a telescopic push rod, the side of the processing spherical shell away from the driving motor is fixedly connected to the driving shaft of the flipping motor, and when discharging, it only needs to be flipped and inflated, the discharging operation is convenient, and strip materials can be discharged, which is convenient for subsequent pelletizing.

[0010] Preferably, the processing ball shell is arranged on the top of the inner wall of the processing cylinder and is fixedly connected to the inner wall of the processing cylinder through a supporting frame, and the driving motor, telescopic push rod and flip motor are all fixed on the supporting frame through a connecting frame.

[0011] Preferably, a sealing ring adapted to the air pipe is sleeved on and fixedly connected to the inflation nozzle, and a heating structure is provided inside the stirring roller.

[0012] Preferably, the control device includes a control panel, the inner wall of the control panel is rotatably connected to a control block, the side of the control block is fixedly connected to a limit block, the side of the limit block is fixedly connected to an arc spring, the end of the arc spring away from the limit block is fixedly connected to the inner wall of the control panel, the side of the limit block away from the control block is fixedly connected to a switch sheet, the inner wall of the control panel is fixedly connected to an arc slide matched with the switch sheet, the switch sheet and the arc slide are both arranged on the control circuit of the flipping motor, and one side of the control block is fixedly connected to a rotating column, which is convenient for automatically controlling the flipping of the treatment spherical shell according to the hardness of the sludge inside the treatment spherical shell, without manual operation, realizing full automation and easy use.

[0013] Preferably, one end of the rotating column away from the control block passes through the control disk and is rotationally connected to the control disk, and one end of the rotating column located outside the control disk is fixedly connected to the stirring roller.

[0014] Preferably, the side of the control disk away from the rotating column is fixedly connected to the driving shaft of the driving motor, and the limit blocks are provided in multiple groups and are evenly distributed on the control block.

[0015] Preferably, the drying device includes a drying base, a drying trough is provided on the top of the drying base, a hot air blower is fixedly connected to the inner wall of the drying trough, a vibrator is fixedly connected to the top of the drying base, a wind net is fixedly connected to the top of the vibrator, a fixed frame is fixedly connected to the inner wall of the drying trough, and a top block is fixedly connected to the top of the fixed frame, so as to facilitate the extrusion of the granular sludge, enable the granular sludge to change position continuously, and improve the drying efficiency.

[0016] Preferably, the drying base is arranged inside the processing cylinder and fixedly connected to the inner wall of the processing cylinder, the bottom of the hot air blower passes through the drying base and the processing cylinder and extends to the outside of the processing cylinder, the top blocks are arranged in multiple groups and are evenly distributed on the fixed frame, and the top of the top blocks passes through the wind net and is slidably connected to the wind net.

[0017] The present invention provides a sludge drying machine with a dust removal structure. It has the following beneficial effects:

[0018] 1. A sludge dryer with a dust removal structure, when in use, puts the sludge into a pretreatment device, pre-treats the sludge through the pretreatment device so that the sludge changes from a fluid state to a solid state, and then discharges the sludge from the pretreatment device, and after being pelletized by a pelletizing device, falls on a drying device, and the granular sludge is dried by the drying device, which facilitates increasing the contact area between the sludge and the hot air, thereby improving the drying efficiency.

[0019] 2. This sludge drying machine with a dust removal structure is provided with a pretreatment device. When in use, the sludge is put into the processing ball shell, and then the driving motor drives the stirring roller to rotate. The stirring roller heats the sludge while stirring, so that the moisture in the sludge evaporates quickly. When the moisture in the sludge evaporates to a certain extent, the processing ball shell is driven to rotate by the flipping motor, and the extrusion screen is rotated to the bottom. The sludge falls on the extrusion screen, and then the air pipe and the inside of the processing ball shell are inflated through the inflation nozzle. The air pressure inside the processing ball shell increases, and the squeezed sludge is discharged from the mesh holes of the extrusion screen. When discharging, it only needs to be flipped and inflated. The discharging operation is convenient, and strip materials can be discharged, which is convenient for subsequent pelletizing.

[0020] 3. This sludge drying machine with a dust removal structure is provided with a control device. As the water in the sewage inside the treatment spherical shell gradually evaporates, the resistance to the rotation of the stirring roller gradually increases, and the resistance of the stirring roller is transmitted to the control block. The resistance drives the control block to rotate in the direction of the compressed arc spring. The compressed arc spring drives the switch piece on the limit block to move at the same time. When the resistance reaches a certain level, the switch piece moves to the arc slide. At this time, the flipping motor is energized to drive the flipping degree of the treatment spherical shell, so that the flipping of the treatment spherical shell is automatically controlled according to the hardness of the sludge inside the treatment spherical shell. No manual operation is required, and full automation is realized, which is easy to use.

[0021] 4. This sludge drying machine with a dust removal structure is provided with a drying device. When granular sludge falls on the wind net, the vibrator drives the wind net to vibrate, and the wind net drives the granular sludge thereon to vibrate, so that gaps can be generated between adjacent granular sludges during the vibration process, thereby avoiding low drying efficiency and uneven drying caused by sludge accumulation. At the same time, during the vibration of the wind net, the top block continuously protrudes from the wind net, which is convenient for squeezing the granular sludge, so that the granular sludge can continuously change position, thereby improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the sludge dryer with dust removal structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the internal structure of the treatment cylinder of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the pretreatment device of the present invention.

[0025] Figure 4 It is a schematic diagram of the internal structure of the pretreatment device of the present invention.

[0026] Figure 5 Schematic diagram of the internal structure of the control device of the present invention.

[0027] Figure 6 It is a schematic diagram of the connection structure of the drying device of the present invention.

[0028] Figure 7 It is a schematic diagram of the structure of the drying device of the present invention.

[0029] Figure 8 It is a schematic diagram of the internal structure of the drying device of the present invention.

[0030] In the figure: 1. treatment cylinder; 2. positioning bracket; 3. pretreatment device; 31. treatment ball shell; 32. driving motor; 33. control device; 331. control panel; 332. control block; 333. limit block; 334. arc spring; 335. switch piece; 336. arc slide; 337. rotating column; 34. stirring roller; 35. extrusion filter; 36. air pipe; 37. inflation nozzle; 38. telescopic push rod; 39. flip motor; 4. pelletizing equipment; 5. drying device; 51. drying base; 52. drying tank; 53. hot air blower; 54. vibrator; 55. wind net; 56. fixing frame; 57. top block; 6. dust removal mechanism. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 2 The present invention provides a technical solution: a sludge drying machine with a dust removal structure, comprising a treatment barrel 1 and a positioning bracket 2, wherein the positioning bracket 2 is sleeved on the treatment barrel 1 and fixedly connected to the treatment barrel 1, and further comprising

[0033] A pretreatment device 3, which is arranged on the top of the inner wall of the treatment tube 1, and is fixed to the top of the inner wall of the treatment tube 1 by a support frame, and is used for preliminary drying of the sludge;

[0034] A pelletizing device 4, which is arranged in the part of the treatment barrel 1 below the pretreatment device 3, and is fixedly connected to the inner wall of the treatment barrel 1, and is used to pelletize the material preliminarily dried by the pretreatment device 3;

[0035] A drying device 5 is arranged in the part of the processing cylinder 1 below the pelletizing device 4. The drying device 5 is fixedly connected to the bottom of the inner wall of the processing cylinder 1. The drying device 5 is used to dry the granular material cut by the pelletizing device 4.

[0036] The dust removal mechanism 6 is arranged on both sides of the processing tube 1 and is connected to the inside of the processing tube 1. The dust removal mechanism 6 is used to absorb dust inside the processing tube 1.

[0037] When in use, the sludge is put into the pretreatment device 3, and the sludge is pretreated by the pretreatment device 3 so that the sludge changes from a fluid state to a solid state. The sludge is then discharged from the pretreatment device 3, and after being pelletized by the pelletizing device 4, it falls on the drying device 5. The granular sludge is dried by the drying device 5, which facilitates increasing the contact area between the sludge and the hot air, thereby improving the drying efficiency.

[0038] See also Figure 1-Figure 4The present invention provides a technical solution: the pretreatment device 3 includes a treatment ball shell 31, a driving motor 32 is fixedly connected to one side of the treatment ball shell 31, the driving shaft of the driving motor 32 passes through the treatment ball shell 31 and extends to the inside of the treatment ball shell 31, the driving shaft end of the driving motor 32 is fixedly connected to the control device 33, the side of the control device 33 away from the driving motor 32 is fixedly connected to the stirring roller 34, the top of the treatment ball shell 31 is fixedly connected to the squeezing filter 35, the treatment ball shell 31 One side is connected to the air pipe 36, the inner wall of the air pipe 36 is slidably connected to the inflation nozzle 37, the end of the inflation nozzle 37 away from the air pipe 36 is connected to the external air pump, the inflation nozzle 37 One side is fixedly connected to a telescopic push rod 38, the side of the treatment ball shell 31 away from the driving motor 32 is fixedly connected to the driving shaft of the flip motor 39, the treatment ball shell 31 is arranged on the top of the inner wall of the treatment cylinder 1 and is fixedly connected to the inner wall of the treatment cylinder 1 through a support frame, the driving motor 32, the telescopic push rod 38 is fixedly connected to the one side of the inflation nozzle 37, The retracting push rod 38 and the flip motor 39 are both fixed to the support frame through a connecting frame, a sealing ring adapted to the air pipe 36 is sleeved and fixedly connected on the inflation nozzle 37, a heating structure is arranged inside the stirring roller 34, and a pre-treatment device 3 is arranged. When in use, the sludge is put into the processing ball shell 31, and then the stirring roller 34 is driven to rotate by the driving motor 32. The stirring roller 34 heats the sludge while stirring, so that the water in the sludge evaporates quickly. When the water in the sludge evaporates to a certain extent, the processing ball shell 31 is driven to rotate by the flip motor 39, and the extrusion screen 35 is rotated to the bottom, and the sludge falls on the extrusion screen 35. Then, the air pipe 36 and the processing ball shell 31 are inflated through the inflation nozzle 37. The air pressure inside the processing ball shell 31 increases, and the extruded sludge is discharged from the mesh of the extrusion screen 35. When discharging, it only needs to be flipped and inflated. The discharging operation is convenient, and strip materials can be discharged, which is convenient for subsequent pelletizing.

[0039] See also Figure 1-Figure 5The present invention provides a technical solution: the control device 33 includes a control disk 331, the inner wall of the control disk 331 is rotatably connected to a control block 332, the side of the control block 332 is fixedly connected to a limit block 333, the side of the limit block 333 is fixedly connected to an arc spring 334, the end of the arc spring 334 away from the limit block 333 is fixedly connected to the inner wall of the control disk 331, the side of the limit block 333 away from the control block 332 is fixedly connected to a switch sheet 335, the inner wall of the control disk 331 is fixedly connected to an arc slide 336 adapted to the switch sheet 335, the switch sheet 335 and the arc slide 336 are both arranged on the control circuit of the flip motor 39, a rotating column 337 is fixedly connected to one side of the control block 332, the end of the rotating column 337 away from the control block 332 passes through the control disk 331 and is rotatably connected to the control disk 331, and the end of the rotating column 337 located outside the control disk 331 is connected to the stirring The roller 34 is fixedly connected, and the side of the control disk 331 away from the rotating column 337 is fixedly connected to the driving shaft of the driving motor 32. There are multiple groups of limit blocks 333 and they are evenly distributed on the control block 332. A control device 33 is provided. As the water in the sewage inside the processing ball shell 31 gradually evaporates, the resistance to the rotation of the stirring roller 34 gradually increases, and the resistance encountered by the stirring roller 34 is transmitted to the control block 332. The resistance drives the control block 332 to rotate in the direction of the compression arc spring 334. The compression arc spring 334 drives the switch piece 335 on the limit block 333 to move. When the resistance reaches a certain level, the switch piece 335 moves to the arc slide 336. At this time, the flip motor 39 is energized to drive the processing ball shell 31 to flip 180 degrees, so that the flipping of the processing ball shell 31 can be automatically controlled according to the hardness of the sludge inside the processing ball shell 31. No manual operation is required, and full automation is achieved, which is easy to use.

[0040] See also Figure 1-Figure 8The present invention provides a technical solution: the drying device 5 includes a drying base 51, a drying tank 52 is provided on the top of the drying base 51, a hot air blower 53 is fixedly connected to the inner wall of the drying tank 52, a vibrator 54 is fixedly connected to the top of the drying base 51, a wind net 55 is fixedly connected to the top of the vibrator 54, a fixing frame 56 is fixedly connected to the inner wall of the drying tank 52, a top block 57 is fixedly connected to the top of the fixing frame 56, the drying base 51 is arranged inside the processing tube 1 and is fixedly connected to the inner wall of the processing tube 1, the bottom of the hot air blower 53 passes through the drying base 51 and the processing tube 1 and extends to the outside of the processing tube 1, and the top block 57 is provided with multiple groups and And they are evenly distributed on the fixed frame 56, the top of the top block 57 penetrates the wind net 55 and is slidably connected to the wind net 55, and a drying device 5 is provided. When the granular sludge falls on the wind net 55, the vibrator 54 drives the wind net 55 to vibrate, and the wind net 55 drives the granular sludge thereon to vibrate, so that gaps can be generated between adjacent granular sludges during the vibration process, thereby avoiding low drying efficiency and uneven drying caused by sludge accumulation. At the same time, during the vibration of the wind net 55, the top block 57 continuously protrudes from the wind net 55, which is convenient for squeezing the granular sludge, so that the granular sludge can continuously change position, which can improve the drying efficiency.

[0041] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A sludge drying machine with a dust removal structure, comprising a treatment barrel (1) and a positioning bracket (2), wherein the positioning bracket (2) is sleeved on the treatment barrel (1) and fixedly connected to the treatment barrel (1), characterized in that: Also includes A pretreatment device (3), the pretreatment device (3) being arranged on the top of the inner wall of the treatment barrel (1), the pretreatment device (3) being fixed to the top of the inner wall of the treatment barrel (1) via a support frame, the pretreatment device (3) being used for preliminary drying of sludge; a pelletizing device (4), the pelletizing device (4) being arranged in a portion of the processing cylinder (1) located below the pre-processing device (3), the pelletizing device (4) being fixedly connected to the inner wall of the processing cylinder (1), and being used to perform a pelletizing operation on the material preliminarily dried by the pre-processing device (3); a drying device (5), the drying device (5) being arranged in a portion of the processing cylinder (1) below the pelletizing device (4), the drying device (5) being fixedly connected to the bottom of the inner wall of the processing cylinder (1), and being used to dry the granular material cut by the pelletizing device (4); A dust removal mechanism (6), the dust removal mechanism (6) being arranged on both sides of the processing tube (1) and being in communication with the interior of the processing tube (1), the dust removal mechanism (6) being used to absorb dust inside the processing tube (1); The pretreatment device (3) comprises a treatment spherical shell (31), one side of the treatment spherical shell (31) is fixedly connected to a driving motor (32), a driving shaft of the driving motor (32) penetrates the treatment spherical shell (31) and extends into the treatment spherical shell (31), an end of the driving shaft of the driving motor (32) is fixedly connected to a control device (33), a side of the control device (33) away from the driving motor (32) is fixedly connected to a stirring roller (34), a top of the treatment spherical shell (31) is fixedly connected to an extrusion screen (35), one side of the treatment spherical shell (31) is connected to an air pipe (36), an inner wall of the air pipe (36) is slidably connected to an air filling nozzle (37), an end of the air filling nozzle (37) away from the air pipe (36) is connected to an external air pump, a side of the air filling nozzle (37) is fixedly connected to a telescopic push rod (38), and a side of the treatment spherical shell (31) away from the driving motor (32) is fixedly connected to the driving shaft of a flip motor (39); The control device (33) comprises a control disk (331), the inner wall of the control disk (331) being rotatably connected to a control block (332), the side of the control block (332) being fixedly connected to a limit block (333), the side of the limit block (333) being fixedly connected to an arc spring (334), one end of the arc spring (334) away from the limit block (333) being fixedly connected to the inner wall of the control disk (331), the side of the limit block (333) away from the control block (332) being fixedly connected to a switch sheet (335), the inner wall of the control disk (331) being fixedly connected to an arc sliding sheet (336) adapted to the switch sheet (335), the switch sheet (335) and the arc sliding sheet (336) being both arranged on a control circuit of a flip motor (39), and one side of the control block (332) being fixedly connected to a rotating column (337).

2. The sludge drying machine with dust removal structure according to claim 1, characterized in that: The processing ball shell (31) is arranged on the top of the inner wall of the processing cylinder (1) and is fixedly connected to the inner wall of the processing cylinder (1) via a support frame, and the driving motor (32), the telescopic push rod (38) and the flip motor (39) are all fixed to the support frame via a connecting frame.

3. The sludge drying machine with dust removal structure according to claim 1, characterized in that: A sealing ring matching the air pipe (36) is sleeved on and fixedly connected to the inflation nozzle (37), and a heating structure is provided inside the stirring roller (34).

4. The sludge drying machine with dust removal structure according to claim 1, characterized in that: One end of the rotating column (337) away from the control block (332) passes through the control disk (331) and is rotationally connected to the control disk (331), and one end of the rotating column (337) located outside the control disk (331) is fixedly connected to the stirring roller (34).

5. The sludge drying machine with dust removal structure according to claim 4, characterized in that: The side of the control disk (331) away from the rotating column (337) is fixedly connected to the drive shaft of the drive motor (32), and the limit blocks (333) are provided in multiple groups and are evenly distributed on the control blocks (332).

6. The sludge drying machine with dust removal structure according to claim 1, characterized in that: The drying device (5) comprises a drying base (51), a drying groove (52) is provided on the top of the drying base (51), a hot air blower (53) is fixedly connected to the inner wall of the drying groove (52), a vibrator (54) is fixedly connected to the top of the drying base (51), a wind net (55) is fixedly connected to the top of the vibrator (54), a fixing frame (56) is fixedly connected to the inner wall of the drying groove (52), and a top block (57) is fixedly connected to the top of the fixing frame (56).

7. The sludge drying machine with dust removal structure according to claim 6, characterized in that: The drying base (51) is arranged inside the processing cylinder (1) and is fixedly connected to the inner wall of the processing cylinder (1); the bottom of the hot air blower (53) passes through the drying base (51) and the processing cylinder (1) and extends to the outside of the processing cylinder (1); a plurality of groups of top blocks (57) are arranged and are evenly distributed on the fixing frame (56); the top of the top block (57) passes through the wind net (55) and is slidably connected to the wind net (55).

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