Sludge drying and smashing device

Abstract

The utility model relates to the technical field of sludge treatment, and discloses a sludge drying and crushing device which comprises a primary sludge cylinder, a connecting conical cylinder is arranged at the lower end of the primary sludge cylinder, a secondary sludge cylinder is arranged at the lower end of the connecting conical cylinder, and a multi-stage crushing mechanism is arranged in an inner cavity of the primary sludge cylinder; through cooperation of a first-stage sludge cylinder, a second-stage sludge cylinder and a multi-stage crushing mechanism, a driving motor drives a first-stage crushing assembly to conveniently crush large blocks in sludge and guide the large blocks downwards, and then a second-stage crushing assembly is driven to crush small blocks in the sludge under the action of a linkage assembly; the rotating speed of the first-stage crushing assembly is smaller than that of the second-stage crushing assembly, so that the second-stage crushing assembly can crush blocky sludge to be finer, the surface area of the sludge is increased, the sludge can conveniently enter the drying cylinder, and the drying efficiency of the sludge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a sludge drying and crushing device. Background Technique

[0002] Sludge drying, also known as sludge dewatering, refers to the process of removing most of the water content from sludge through percolation or evaporation, etc. Generally, self-evaporation facilities such as sludge drying fields (beds) are used. After sludge concentration, physical methods are used to further reduce the water content of the sludge, facilitating the transportation, stacking, utilization or further treatment of the sludge. There are two methods of dewatering (drying): natural evaporation method and mechanical dewatering method. Conventionally, the mechanical dewatering method is called sludge dewatering, and the natural evaporation method is called sludge drying. Although the methods are different, they are all measures to further reduce the water content of the sludge;

[0003] In the prior art, the content of the Chinese utility model with the publication number: CN215049591U discloses an integrated high-pressure sludge drying device, including a drying cylinder and a sludge pipe, and also including a stirring mechanism and a supporting mechanism. The stirring mechanism is composed of a vertical pipe, a sludge guiding pipe, a rotating shaft, a motor, a stirring rod and a knife plate. The pipe orifice of the sludge pipe is connected to the vertical pipe in a communicating manner, and a sludge guiding pipe horizontally extends from the pipe wall of the vertical pipe. The rotating shaft is rotatably connected to the pipe cover at the top of the vertical pipe. A vertical pipe of the stirring mechanism is arranged at the sludge pipe of the drying cylinder. When the sludge passes through the pipeline and is injected into the vertical pipe from the sludge guiding pipe, the control power supply of the motor is turned on, and the motor drives the rotating shaft to rotate in the vertical pipe. At this time, the stirring rod and the knife plate outside the rotating shaft rotate under the influence of the rotating force. The rotated stirring rod and knife plate can break up the larger lumps in the sludge. The sludge after being broken and stirred flows into the drying cylinder along the sludge pipe for drying, which can prevent the larger hard lumps in the sludge from entering the drying cylinder from the sludge pipe;

[0004] Although the above technical solution breaks up the larger sludge lumps through the stirring rod and the knife plate, however, the smaller sludge lumps in the sludge and the lumps after the larger lumps are broken may be missed, resulting in the sludge with lumps not being broken and entering the drying cylinder, and thus the crushing effect on the sludge needs to be further improved. Therefore, we need to propose a sludge drying and crushing device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sludge drying and crushing device, which uses a multi-stage crushing device to crush the lumps in the sludge, thereby reducing the lumps in the sludge and improving the drying efficiency after the sludge enters the drying cylinder, so as to solve the problems proposed in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: a sludge drying and crushing device, including a primary sludge cylinder, a connecting conical cylinder is arranged at the lower end of the primary sludge cylinder, a secondary sludge cylinder is arranged at the lower end of the connecting conical cylinder, and a multi-stage crushing mechanism is arranged in the inner cavity of the primary sludge cylinder;

[0007] The multi-stage crushing mechanism includes a driving motor, a primary crushing component, a linkage component and a secondary crushing component. The driving motor is installed on the upper surface of the primary sludge cylinder. The primary crushing component is arranged in the inner cavity of the primary sludge cylinder. The linkage component is arranged at the top of the inner cavity of the connecting conical cylinder. The secondary crushing component is arranged in the inner cavity of the secondary sludge cylinder;

[0008] The linkage component includes a fixed seat and a horizontal shaft. The horizontal shaft is rotatably connected to the inner cavity of the fixed seat. One end of the horizontal shaft is fixedly connected with a transmission bevel gear. A driving bevel gear meshing with the transmission bevel gear is rotatably connected to the top of the inner cavity of the fixed seat. A driven bevel gear meshing with the transmission bevel gear is rotatably connected to the bottom of the inner cavity of the fixed seat. The outer diameter of the driving bevel gear is larger than that of the transmission bevel gear. The outer diameter of the transmission bevel gear is the same as that of the driven bevel gear.

[0009] Preferably, the primary crushing component includes a primary rotating shaft rotatably connected to the top of the inner cavity of the primary sludge cylinder. The upper end of the primary rotating shaft penetrates through the primary sludge cylinder and is driven by the driving motor. The lower end of the primary rotating shaft penetrates through the fixed seat and is fixedly connected with the driving bevel gear.

[0010] Preferably, multiple groups of primary crushing rods and multiple groups of guiding blades are arranged on the outer side of the primary rotating shaft. The multiple groups of primary crushing rods and the multiple groups of guiding blades are arranged in a staggered manner. Each group of primary crushing rods and each group of guiding blades are provided with a plurality of them.

[0011] Preferably, the secondary crushing component includes a secondary rotating shaft rotatably connected to the lower surface of the fixed seat. The upper end of the secondary rotating shaft penetrates through the fixed seat and is fixedly connected with the driven bevel gear. The axes of the secondary rotating shaft and the primary rotating shaft are both on the same straight line.

[0012] Preferably, multiple groups of secondary crushing rods are arranged on the outer side of the secondary rotating shaft. The multiple groups of secondary crushing rods are arranged at equal intervals. Each group of secondary crushing rods is provided with a plurality of them. And one end of each of the multiple earphone crushing rods is provided with a conical block. Multiple groups of drainage fan blades are fixedly connected to the lower end of the secondary rotating shaft.

[0013] Preferably, the inner diameter of the secondary sludge cylinder is smaller than that of the primary sludge cylinder. The length of the primary crushing rod is smaller than that of the secondary crushing rod. Multiple groups of support rods fixedly connected to the lower end of the inner wall of the primary sludge cylinder are arranged on the outer side of the fixed seat.

[0014] Preferably, a sludge square pipe is connected to the upper end of the outer side of the primary sludge cylinder, and a feed pipe is connected to the lower end of the outer side of the secondary sludge cylinder. One end of the feed pipe is provided with a drying cylinder, and a support base is arranged at the lower end of the drying cylinder.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The present utility model mainly realizes the cooperation among the primary sludge cylinder, the secondary sludge cylinder and the multi-stage crushing mechanism. By driving the primary crushing assembly with a driving motor, it is convenient to crush the larger lumps in the sludge and drain them downward. Then, under the action of the linkage assembly, the secondary crushing assembly is driven to crush the smaller lumps in the sludge. The rotation speed of the primary crushing assembly is less than that of the secondary crushing assembly, so that the secondary crushing assembly can crush the lumpy sludge into finer particles, thereby increasing the surface area of the sludge, facilitating the sludge to enter the drying cylinder, and improving the drying efficiency of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the structural schematic diagram of the multi-stage crushing mechanism of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the linkage assembly of the present utility model.

[0020] In the figure: 1, drying cylinder; 2, support base; 3, feed pipe; 4, primary sludge cylinder; 5, connecting conical cylinder; 6, secondary sludge cylinder; 7, sludge square pipe; 8, multi-stage crushing mechanism; 81, driving motor; 82, primary crushing assembly; 821, primary rotating shaft; 822, primary crushing rod; 823, guiding blade; 83, linkage assembly; 831, fixed seat; 832, support rod; 833, horizontal shaft; 834, driving bevel gear; 835, driving bevel gear; 836, driven bevel gear; 84, secondary crushing assembly; 841, secondary rotating shaft; 842, secondary crushing rod; 843, conical block; 844, drainage fan blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-3, the present utility model provides a technical solution: a sludge drying and crushing device, including a primary sludge cylinder 4, a connecting conical cylinder 5 is arranged at the lower end of the primary sludge cylinder 4, a secondary sludge cylinder 6 is arranged at the lower end of the connecting conical cylinder 5, and a multi-stage crushing mechanism 8 is arranged in the inner cavity of the primary sludge cylinder 4;

[0023] The multi-stage crushing mechanism 8 includes a driving motor 81, a primary crushing component 82, a linkage component 83 and a secondary crushing component 84. The driving motor 81 is installed on the upper surface of the primary sludge cylinder 4. The primary crushing component 82 is arranged in the inner cavity of the primary sludge cylinder 4. The linkage component 83 is arranged at the top of the inner cavity of the connecting conical cylinder 5. The secondary crushing component 84 is arranged in the inner cavity of the secondary sludge cylinder 6;

[0024] The linkage component 83 includes a fixed seat 831 and a horizontal shaft 833. The horizontal shaft 833 is rotatably connected to the inner cavity of the fixed seat 831. One end of the horizontal shaft 833 is fixedly connected with a transmission bevel gear 834. A driving bevel gear 835 meshing with the transmission bevel gear 834 is rotatably connected to the top of the inner cavity of the fixed seat 831. A driven bevel gear 836 meshing with the transmission bevel gear 834 is rotatably connected to the bottom of the inner cavity of the fixed seat 831. The outer diameter of the driving bevel gear 835 is larger than that of the transmission bevel gear 834, and the outer diameters of the transmission bevel gear 834 and the driven bevel gear 836 are the same.

[0025] The primary crushing component 82 includes a primary rotating shaft 821 rotatably connected to the top of the inner cavity of the primary sludge cylinder 4. The upper end of the primary rotating shaft 821 penetrates through the primary sludge cylinder 4 and is driven by the driving motor 81. The lower end of the primary rotating shaft 821 penetrates through the fixed seat 831 and is fixedly connected with the driving bevel gear 835. By providing kinetic energy by the driving motor 81 and under the action of the linkage component 83, the primary crushing component 82 and the secondary crushing component 84 rotate, reducing the driving equipment.

[0026] A plurality of groups of primary crushing rods 822 and a plurality of groups of guiding blades 823 are arranged on the outer side of the primary rotating shaft 821. The plurality of groups of primary crushing rods 822 and the plurality of groups of guiding blades 823 are arranged in a staggered manner. Each group of primary crushing rods 822 and each group of guiding blades 823 are provided with a plurality of. By the staggered arrangement of the guiding blades 823 and the primary crushing rods 822, large pieces of sludge can be evenly crushed.

[0027] The secondary crushing component 84 includes a secondary rotating shaft 841 rotatably connected to the lower surface of the fixed seat 831. The upper end of the secondary rotating shaft 841 penetrates through the fixed seat 831 and is fixedly connected with the driven bevel gear 836. The axes of the secondary rotating shaft 841 and the primary rotating shaft 821 are both arranged on the same straight line. By providing kinetic energy by the driving bevel gear 835 and driving the driven bevel gear 836 to rotate under the action of the transmission bevel gear 834, and by different diameters, the rotation speeds of the primary rotating shaft 821 and the secondary rotating shaft 841 are different, so as to achieve different crushing effects on sludge blocks.

[0028] On the outer side of the secondary rotating shaft 841, there are multiple groups of secondary crushing rods 842 arranged at equal intervals. Each group of secondary crushing rods 842 has a plurality of them, and one end of each of the multiple earphone crushing rods is provided with a conical block 843. At the lower end of the secondary rotating shaft 841, there are multiple groups of drainage fan blades 844 fixedly connected. The sludge lumps can be better crushed by the secondary crushing rods 842, so as to accelerate the flow rate of the sludge under the action of the drainage fan blades 844.

[0029] The inner diameter of the secondary sludge cylinder 6 is smaller than that of the primary sludge cylinder 4. The length of the primary crushing rod 822 is smaller than that of the secondary crushing rod 842. On the outer side of the fixing seat 831, there are multiple groups of support rods 832 fixedly connected to the lower end of the inner wall of the primary sludge cylinder 4. The primary sludge cylinder facilitates the passage of larger lumps of sludge, and the secondary sludge cylinder 6 only allows smaller lumps of sludge to pass through, thereby facilitating the smaller particle size of the sludge lumps entering the drying cylinder 1.

[0030] At the upper end of the outer side of the primary sludge cylinder 4, there is a sludge square pipe 7 connected. At the lower end of the outer side of the secondary sludge cylinder 6, there is a feed pipe 3 connected. One end of the feed pipe 3 is provided with a drying cylinder 1. At the lower end of the drying cylinder 1, there is a support seat 2. The stability of drying the sludge by the drying cylinder 1 is improved through the support seat 2, and at the same time, the sludge square pipe 7 and the feed pipe 3 facilitate the feeding of the sludge.

[0031] During use, the sludge enters the primary sludge cylinder 4 through the sludge square pipe 7, and under the action of gravity, it falls into the secondary sludge cylinder 6 through the connecting tapered pipe. The driving motor 81 drives the primary rotating shaft 821 to rotate. The primary rotating shaft 821 drives the driving bevel gear 835 to rotate. The driving bevel gear 835 meshes with the driving bevel gear 834 to drive the driven bevel gear 836 to rotate. Since the outer diameter of the driving bevel gear 835 is larger than that of the driven bevel gear 836, the rotation speed of the primary rotating shaft 821 is less than that of the secondary rotating shaft 841. The first crushing rod and the guiding blade 823 on the primary rotating shaft 821 crush the larger lumps in the sludge, and under the action of the guiding blade 823, the downward flow efficiency is accelerated. At the same time, the second crushing rod on the secondary rotating shaft 841 crushes the smaller sludge lumps after crushing again, so as to form smaller sludge lumps. Under the action of the drainage fan blades 844, the sludge flows into the drying cylinder 1 through the feed pipe 3 for drying treatment, improving the crushing efficiency of the sludge and further improving the drying efficiency of the sludge.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge drying and crushing device, including a primary sludge cylinder (4), characterized in that: A connecting cone cylinder (5) is provided at the lower end of the primary sludge cylinder (4), a secondary sludge cylinder (6) is provided at the lower end of the connecting cone cylinder (5), and a multi-stage crushing mechanism (8) is arranged in the inner cavity of the primary sludge cylinder (4); The multi-stage crushing mechanism (8) includes a driving motor (81), a primary crushing component (82), a linkage component (83) and a secondary crushing component (84). The driving motor (81) is installed on the upper surface of the primary sludge cylinder (4), the primary crushing component (82) is arranged in the inner cavity of the primary sludge cylinder (4), the linkage component (83) is arranged at the top of the inner cavity of the connecting cone cylinder (5), and the secondary crushing component (84) is arranged in the inner cavity of the secondary sludge cylinder (6); The linkage component (83) includes a fixed seat (831) and a horizontal shaft (833). The horizontal shaft (833) is rotatably connected in the inner cavity of the fixed seat (831). One end of the horizontal shaft (833) is fixedly connected with a driving bevel gear (834). A driving bevel gear (835) meshing with the driving bevel gear (834) is rotatably connected to the top of the inner cavity of the fixed seat (831). A driven bevel gear (836) meshing with the driving bevel gear (834) is rotatably connected to the bottom of the inner cavity of the fixed seat (831). The outer diameter of the driving bevel gear (835) is larger than that of the driving bevel gear (834), and the outer diameter of the driving bevel gear (834) is the same as that of the driven bevel gear (836).

2. The sludge drying and crushing device according to claim 1, characterized in that: The primary crushing component (82) includes a primary rotating shaft (821) rotatably connected to the top of the inner cavity of the primary sludge cylinder (4). The upper end of the primary rotating shaft (821) penetrates through the primary sludge cylinder (4) and is driven by the driving motor (81). The lower end of the primary rotating shaft (821) penetrates through the fixed seat (831) and is fixedly connected with the driving bevel gear (835).

3. The sludge drying and crushing device according to claim 2, wherein: A plurality of groups of primary crushing rods (822) and a plurality of groups of guiding blades (823) are arranged on the outer side of the primary rotating shaft (821). The plurality of groups of primary crushing rods (822) and the plurality of groups of guiding blades (823) are arranged in a staggered manner. Each group of the primary crushing rods (822) and each group of the guiding blades (823) are provided with a plurality of.

4. A sludge drying and crushing device according to claim 3, characterized in that: The secondary crushing component (84) includes a secondary rotating shaft (841) rotatably connected to the lower surface of the fixed seat (831). The upper end of the secondary rotating shaft (841) penetrates through the fixed seat (831) and is fixedly connected with the driven bevel gear (836). The axes of the secondary rotating shaft (841) and the primary rotating shaft (821) are arranged on the same straight line.

5. A sludge drying and crushing device according to claim 4, characterized in that: A plurality of groups of secondary crushing rods (842) are arranged on the outer side of the secondary rotating shaft (841). The plurality of groups of secondary crushing rods (842) are arranged at equal intervals. Each group of the secondary crushing rods (842) is provided with a plurality of, and one ends of the plurality of earphone crushing rods are all provided with conical blocks (843). The lower end of the secondary rotating shaft (841) is fixedly connected with a plurality of groups of drainage fan blades (844).

6. The sludge drying and crushing device according to claim 5, wherein: The inner diameter of the secondary sludge cylinder (6) is smaller than that of the primary sludge cylinder (4), the length of the primary crushing rod (822) is smaller than that of the secondary crushing rod (842), and multiple groups of support rods (832) fixedly connected to the lower end of the inner wall of the primary sludge cylinder (4) are arranged on the outer side of the fixed seat (831).

7. A sludge drying and crushing device according to claim 1, characterized in that: A sludge square pipe (7) is communicated with the upper end of the outer side of the primary sludge cylinder (4), a feed pipe (3) is communicated with the lower end of the outer side of the secondary sludge cylinder (6), one end of the feed pipe (3) is provided with a drying cylinder (1), and a support seat (2) is arranged at the lower end of the drying cylinder (1).

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