CN218981766U - Sludge crushing and screening device - Google Patents

Abstract

The utility model discloses a sludge crushing and screening device, which belongs to the technical field of sludge pretreatment, and comprises a screening box, wherein a screen is arranged between the screening box and a fine material box, a coarse material discharge valve plate is arranged between the screening box and a coarse material box, a driving roller is arranged in the screening box, a plurality of crushing hammers are hinged on the driving roller, a high-speed motor for driving the driving roller to rotate is arranged outside the screening box, the feeding speed is adjustable, the transmission efficiency of the driving roller is high, and the problems that the feeding speed of the conventional sludge crushing and screening device is high, the machine is easy to clamp, and the transmission efficiency of the roller is low, so that the crushing and screening of sludge blocks cannot be carried out pertinently are solved, and compared with the prior art, the device has the remarkable advantages that: can effectively crush the coagulated blocks in the sludge, fully grind, intensively filter non-crushable substances, and meet the sludge characteristics of subsequent treatment.

Description

Sludge crushing and screening device

Technical Field

The utility model relates to sludge pretreatment equipment, in particular to a sludge crushing and screening device.

Background

Sludge is a byproduct generated in the town water treatment operation process, and can be roughly divided into two types according to sources and properties: the first type is sewage sludge, which has higher organic matter content (more than 45% of dry basis content) and belongs to organic matter sludge, and lime conditioning combined plate frame filter pressing consolidation treatment is adopted; the second type is mainly through ditch sludge, river dredging sludge and the like, has low organic matter content (accounting for less than 15% of the dry basis content), belongs to inorganic sludge, and is mostly directly filtered.

Sewage sludge, ditch sludge and river dredging sludge are treated and then are doped with a large amount of inorganic agglomerations and some refractory impurities, if crushing and screening treatment is not carried out, the subsequent treatment process is further limited, the prior art is realized by arranging a longer assembly line when sludge grinding and screening treatment is carried out, the agglomerations are required to be reused after being crushed, and some refractory impurities are required to be further screened and filtered, the pretreatment flow often causes large equipment occupation area, and the treatment process is complex, such as patent: CN212915785U discloses a desiccated sludge crusher, which crushes, pulverizes and screens sludge blocks in sequence, however, the crusher is complicated to the pulverizing process, and the pulverizing path is shorter, the pulverizing granularity is larger, and the materials are easy to be blocked on a screen, so that a sludge crushing and screening device is needed to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a sludge crushing and screening device, which aims to solve the problem that the existing sludge crushing and screening device cannot crush and screen sludge blocks in a targeted manner.

The technical solution for realizing the purpose of the utility model is as follows: the utility model provides a broken screening plant of mud, includes divides the sieve case, it is provided with the feed inlet to divide the sieve case top, it is provided with the collecting box of collecting the sieve material to divide the sieve case bottom, the bottom of feed inlet is provided with the feed valve plate of control feed speed, divide the inside driving roller that is provided with of sieve case, it has a plurality of crushing hammer to articulate on the driving roller, it is provided with the high-speed motor that drives driving roller pivoted to divide the sieve case outside, fine material case and coarse fodder case have been placed in the collecting box, be provided with the screen cloth between sieve case and the fine material case to divide, be provided with the coarse fodder between sieve case and the coarse fodder case and emit the valve plate.

Further, a tension spring is arranged between the crushing hammer and the driving roller, and a grinding head is arranged on one side of the crushing hammer, which is away from the driving roller.

Further, the surface of the grinding head is of an arc-shaped structure, and raised grinding particles are arranged on the surface of the grinding head.

Further, two drawing grooves are formed in the collecting box, the fine material box and the coarse material box are respectively placed in the drawing grooves, and a base is arranged at the bottom of the collecting box.

Further, one side of dividing the sieve case is provided with perspective window, be provided with toughened glass in the perspective window, perspective window inboard is provided with the swivel mount, the swivel mount is connected with the one end rotation of driving roller.

Further, divide the sieve case to be cylindric structure, divide the interval between sieve case two terminal surfaces to be greater than the front and back interval of collecting box.

Further, the feeding valve plate and the coarse material discharge valve plate are of a drawable structure, and handles which are convenient to draw are arranged on the feeding valve plate and the coarse material discharge valve plate.

Compared with the prior art, the utility model has the remarkable advantages that:

1. according to the utility model, the crushing hammer is driven to rotate by the high-speed motor, the rotation radius and inertia of the crushing hammer are increased under the action of centrifugal force, so that sludge blocks can be well ground, and when the crushing hammer stops rotating, the rotation radius starts to shrink under the pulling force of the tension spring, so that the mutual collision of the crushing hammers is prevented;

2. when the crushing hammer rotates at a high speed, the sludge blocks are ground, ground sludge powder enters the fine material box through the screen, coarse material impurities which cannot be ground are left on the upper side of the screen, finally, the coarse material discharge valve plate is pulled out, the high-speed motor reversely drives the crushing hammer to rotate, and the crushing hammer pushes the large-particle sludge materials into the coarse material box.

Drawings

Fig. 1 is a schematic structural view of a sludge crushing and screening device of the present utility model.

FIG. 2 is a front cross-sectional view of a sludge crushing and screening apparatus of the present utility model.

FIG. 3 is a right side cross-sectional view of a sludge crushing and screening apparatus of the present utility model.

In the figure: the device comprises a screening box 1, a feeding port 2, a feeding valve plate 21, a 3 perspective window, a driving roller 4, a rotary seat 41, a collecting box 5, a fine material box 51, a coarse material box 52, a base 6, a crushing hammer 7, a tension spring 71, a screen 8, a coarse material discharging valve plate 9 and a high-speed motor 10.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1-3, the utility model provides a sludge crushing and screening device, which solves the problem that a roller is low in transmission efficiency and cannot crush and screen sludge blocks in a targeted manner, and comprises a screening box 1, wherein a feed inlet 2 is arranged at the top of the screening box 1, a collecting box 5 for collecting screening materials is arranged at the bottom of the screening box 1, a feed valve plate 21 for controlling feeding speed is arranged at the bottom of the feed inlet 2, a driving roller 4 is arranged inside the screening box 1, a plurality of crushing hammers 7 are hinged on the driving roller 4, a high-speed motor 10 for driving the driving roller 4 to rotate is arranged outside the screening box 1, a fine material box 51 and a coarse material box 52 are arranged in the collecting box 5, a screen 8 is arranged between the screening box 1 and the fine material box 51, and a coarse material discharge valve plate 9 is arranged between the screening box 1 and the coarse material box 52.

Referring to fig. 2, a driving roller 4 is disposed inside a screening box 1, a high-speed motor 10 for driving the driving roller 4 to rotate is disposed outside the screening box 1, a plurality of crushing hammers 7 are hinged to the driving roller 4, tension springs 71 are disposed between the crushing hammers 7 and the driving roller 4, the crushing hammers 7 are driven to rotate by the high-speed motor 10, the rotation radius of the crushing hammers 7 is increased due to centrifugal force, inertia is increased, sludge blocks are fully ground, and when the crushing hammers 7 stop rotating, the crushing hammers 7 shrink by the rotation radius of the tension springs 71, so that the crushing hammers 7 are prevented from collision with each other.

Referring to fig. 2, one side of the crushing hammer 7, which is away from the driving roller 4, is provided with a grinding head, the surface of the grinding head is of an arc structure, the grinding head of the arc structure reduces friction resistance with the inner wall of the screening box 1, and can increase the contact area with sludge blocks, and the grinding head is matched with the surface raised grinding particles of the grinding head, so that the sludge blocks are ground more fully.

Referring to fig. 2, a collecting box 5 for collecting screening materials is arranged at the bottom of a screening box 1, two drawing grooves are formed in the collecting box 5, a fine material box 51 and a coarse material box 52 are respectively placed in the drawing grooves, a screen 8 is arranged between the screening box 1 and the fine material box 51, and a coarse material discharge valve plate 9 is arranged between the screening box 1 and the coarse material box 52;

when the crushing hammer 7 rotates at a high speed and grinds the sludge blocks, the grinded sludge powder enters the fine material box 51 through the screen 8, coarse material impurities which cannot be ground remain on the upper side of the screen 8, finally, the coarse material discharge valve plate 9 is pulled out, the high-speed motor 10 reversely drives the crushing hammer 7 to rotate, and the crushing hammer 7 pushes the sludge with large particles into the coarse material box 52.

Referring to fig. 1, one side of the screening box 1 is provided with a perspective window 3, tempered glass is arranged in the perspective window 3 for observing the working condition in the screening box 1 in real time, a swivel base 41 is arranged on the inner side of the perspective window 3, and the swivel base 41 is rotationally connected with one end of the driving roller 4 to rotationally support one end of the driving roller 4.

Referring to fig. 1, the screening box 1 has a cylindrical structure, the distance between two end surfaces of the screening box 1 is larger than the front-rear distance of the collecting box 5, the effective rotation of the crushing hammer 7 in the rotating process is ensured, and the grinding area is increased.

Referring to fig. 1 and 2, the feed valve plate 21 and the coarse material discharge valve plate 9 are both of a drawable structure, and the feed valve plate 21 and the coarse material discharge valve plate 9 are both provided with handles for facilitating drawing.

As an embodiment of the present utility model: sludge is fed into the screening box 1 from the feed inlet 2, the feeding speed is controlled by adjusting the entering amount of the feed valve plate 21, after the sludge enters the screening box 1, the high-speed motor 10 is electrified to drive the driving roller to rotate clockwise (as shown in figure 2), the crushing hammer 7 is close to the inner wall of the screening box 1 under the centrifugal force, and meanwhile, the crushing hammer 7 rotates to be in strong friction with the sludge, so that the sludge is crushed;

the sludge with small particles enters a fine material box 51 through a screen 8, coarse material impurities which cannot be ground remain on the upper side of the screen 8, a coarse material discharge valve plate 9 is opened finally, a high-speed motor 10 rotates anticlockwise, and a crushing hammer 7 pushes the sludge with large particles into a coarse material box 52;

finally, the high-speed motor 10 is powered off and stopped, and the coarse material box 52 and the fine material box 51 are taken out.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (7)

1. The utility model provides a broken screening plant of mud, includes divides sieve case (1), divide sieve case (1) top to be provided with feed inlet (2), divide sieve case (1) bottom to be provided with collection box (5) of collecting the sieve material, its characterized in that: the bottom of feed inlet (2) is provided with feed valve plate (21) of control feed rate, divide inside driving drum (4) that are provided with of sieve case (1), it has a plurality of crushing hammer (7) to articulate on driving drum (4), divide sieve case (1) outside to be provided with and order about driving drum (4) pivoted high-speed motor (10), fine feed case (51) and coarse fodder case (52) have been placed in collection box (5), divide to be provided with screen cloth (8) between sieve case (1) and fine feed case (51), divide to be provided with coarse fodder between sieve case (1) and coarse fodder case (52) and discharge valve plate (9).

2. A sludge crushing and screening apparatus according to claim 1, characterized in that: a tension spring (71) is arranged between the crushing hammer (7) and the driving roller (4), and a grinding head is arranged on one side of the crushing hammer (7) away from the driving roller (4).

3. A sludge crushing and screening apparatus according to claim 2, characterized in that: the surface of the grinding head is of an arc-shaped structure, and raised grinding particles are arranged on the surface of the grinding head.

4. A sludge crushing and screening apparatus according to claim 1, characterized in that: two drawing grooves are formed in the collecting box (5), the fine material box (51) and the coarse material box (52) are respectively placed in the drawing grooves, and a base (6) is arranged at the bottom of the collecting box (5).

5. A sludge crushing and screening apparatus according to claim 1, characterized in that: one side of divide sieve case (1) is provided with perspective window (3), be provided with toughened glass in perspective window (3), perspective window (3) inboard is provided with swivel mount (41), swivel mount (41) are connected with the one end rotation of driving roller (4).

6. A sludge crushing and screening apparatus according to claim 1, characterized in that: the screening box (1) is of a cylindrical structure, and the distance between two end faces of the screening box (1) is larger than the front-back distance of the collecting box (5).

7. A sludge crushing and screening apparatus according to claim 1, characterized in that: the feeding valve plate (21) and the coarse material discharge valve plate (9) are of a drawable structure, and the feeding valve plate (21) and the coarse material discharge valve plate (9) are provided with handles which are convenient to draw.

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