Centrifugal equipment for sludge dewatering

Abstract

The utility model discloses centrifugal equipment for sludge dewatering, and relates to the field of sludge repairing equipment. The centrifugal equipment for sludge dewatering comprises a centrifugal dewatering machine body, the lower ends of the two sides of the centrifugal dewatering machine body are communicated with a sludge outlet pipe and a water outlet pipe respectively, the centrifugal equipment for sludge dewatering further comprises a dewatering box arranged at the lower end of the centrifugal dewatering machine body, and a feeding port of the dewatering box is communicated with the sludge outlet pipe; according to the sludge dewatering device disclosed by the utility model, the dewatering box, the conveying belts which are symmetrically distributed in a staggered manner, the hollow plates, the spray heads and other components are matched for use, so that in the sludge dewatering process, after sludge flows out of the sludge outlet pipe, the sludge can move in the dewatering box in a snake shape, and thus the time of the sludge in the dewatering box is prolonged; therefore, better pre-drying treatment on the sludge is facilitated, the subsequent sludge drying rate is increased, and the sludge treatment and recycling efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sludge repair equipment, in particular to a centrifugal device for sludge dewatering. Background Art

[0002] Sludge remediation is a type of soil remediation. The existing sludge remediation process includes dehydration, drying and chemical purification, so that the sludge can be turned into normal soil that can be used for vegetation growth. Sludge remediation usually requires the use of centrifugal sludge dehydration equipment for treatment. Centrifugal dehydration equipment uses the density difference between the solid and liquid phases to accelerate the sedimentation rate of the solid phase particles under the action of centrifugal force to achieve solid-liquid separation.

[0003] However, after the existing sludge dewatering centrifugal equipment completes dehydration of the sludge, the moisture content of the mud cake is about 60%-85%. Such a treatment method still contains a large amount of water in the sludge, and the dehydration efficiency is low. Since the dehydrated sludge itself still contains a large amount of water, it takes a long time to dry the sludge in the subsequent process of drying the sludge. Therefore, the dehydration effect of the sludge needs to be further improved. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a centrifugal device for sludge dewatering which can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: a centrifugal device for sludge dewatering, including a centrifugal dewatering machine body, the lower ends of both sides of the centrifugal dewatering machine body are respectively connected with a mud outlet pipe and a water outlet pipe, and also includes: a dewatering box, which is arranged at the lower end of the centrifugal dewatering machine body, and the feed port is connected with the mud outlet pipe; two sets of conveyor belts are symmetrically staggered and installed in the dewatering box; a hollow plate is transversely fixedly connected in the dewatering box and is located below the conveyor belt; and nozzles are equidistantly connected to the hollow plate.

[0006] In order to make the sludge heated more evenly, the nozzles are further symmetrically connected to the upper and lower sides of the hollow plate.

[0007] In order to facilitate the scraping of the sludge attached to the conveyor belt, further, one end of the hollow plate close to the unloading side of the conveyor belt slides against the lower surface of the conveyor belt on the conveyor belt.

[0008] In order to facilitate the removal of sludge on the hollow plate, further, a nozzle is connected to the lower side of the hollow plate, and the air outlet of the nozzle faces the position where the hollow plate is in contact with the conveyor belt.

[0009] In order to facilitate the heat preservation of the dehydration box, further, a circle of hollow frame is fixedly connected to the outer side of the dehydration box, an air inlet is arranged at the lower end of one side of the hollow frame, and the hollow plate is connected to the hollow frame.

[0010] In order to facilitate the hot air to enter the centrifugal dehydrator body, further, the inner upper surface of the dehydration box is gradually inclined toward the position of the feed inlet.

[0011] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model uses a dewatering box, a symmetrically staggered conveyor belt, a hollow plate, a nozzle and other components in coordination. During the sludge dewatering process, after the sludge flows out from the sludge outlet pipe, it can move in a serpentine shape in the dewatering box, thereby extending the time the sludge stays in the dewatering box, thereby facilitating better pre-drying treatment of the sludge, thereby increasing the subsequent drying rate of the sludge and effectively improving the efficiency of sludge treatment and reuse.

[0012] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In the attached picture:

[0014] Figure 1 This is a front view structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of part A.

[0017] In the figure: 1. centrifugal dehydrator body; 101. mud outlet pipe; 102. water outlet pipe; 2. dehydration box; 3. conveyor belt; 4. hollow frame; 401. hollow plate; 402. nozzle; 403. nozzle. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0019] Embodiment 1:

[0020] Reference Figure 1-Figure 3A centrifugal device for sludge dewatering includes a centrifugal dewatering machine body 1, and the lower ends of both sides of the centrifugal dewatering machine body 1 are respectively connected with a mud outlet pipe 101 and a water outlet pipe 102. It also includes: a dewatering box 2, which is arranged at the lower end of the centrifugal dewatering machine body 1, and the feed port is connected with the mud outlet pipe 101; two sets of conveyor belts 3 are symmetrically staggered and installed in the dewatering box 2; a hollow plate 401 is transversely fixedly connected in the dewatering box 2 and is located below the conveyor belt 3; and nozzles 402 are equidistantly connected to the hollow plate 401.

[0021] In the process of repairing the sludge, when it is necessary to remove the water contained in the sludge, the driving assembly and the differential on the centrifugal dehydrator body 1 can be started, and then the water-containing sludge is transported into the hollow shaft of the centrifugal dehydrator body 1. The sludge is discharged from the discharge port because of the high-speed rotation of the hollow shaft. Due to the action of the differential, the sludge and water are separated by centrifugal force, so that the water in the sludge is discharged through the outlet pipe 102, and the flowing sludge enters the dehydration box 2 through the mud outlet pipe 101, and then multiple conveyor belts 3 can be started at the same time. Figure 2 As shown, since the multiple conveyor belts 3 are symmetrically and staggeredly distributed in the dewatering box 2, the sludge will be conveyed to the discharge port of the dewatering box 2 in a serpentine shape under the transmission of the multiple conveyor belts 3 that are symmetrically and staggeredly distributed. At the same time, hot air is conveyed into the hollow plate 401, and the hot air will be sprayed into the dewatering box 2 through the nozzle 402 to pre-dry the sludge. By conveying the sludge in the dewatering box 2 in a serpentine shape, the residence time of the sludge in the dewatering box 2 can be extended while ensuring the flow rate of the sludge, thereby facilitating better pre-drying of the sludge, thereby increasing the subsequent drying rate of the sludge, and effectively improving the efficiency of sludge treatment and reuse.

[0022] Embodiment 2:

[0023] Reference Figure 1-Figure 3 , a centrifugal device for sludge dewatering, is basically the same as Example 1, and further: the nozzles 402 are symmetrically connected to the upper and lower sides of the hollow plate 401, and the nozzles 402 are symmetrically connected to the hollow plate 401 when passing through. When the hot air is ejected through the nozzles 402, not only can the hot air be sprayed to the sludge on the conveyor belt 3 for pre-drying treatment, but also the surface of the conveyor belt 3 can have a certain temperature, thereby facilitating more sufficient heating of the sludge and effectively improving the drying effect of the sludge.

[0024] One end of the hollow plate 401 close to the unloading side of the conveyor belt 3 slides against the lower surface of the conveyor belt on the conveyor belt 3. Through the sliding of the hollow plate 401 against the lower surface of the conveyor belt, when the conveyor belt transports the sludge, part of the sludge will adhere to the conveyor belt due to its strong adhesion. When the sludge on the conveyor belt contacts the hollow plate 401, the hollow plate 401 can scrape it off to avoid more and more sludge adhering to the conveyor belt, thereby affecting the output effect of the sludge.

[0025] The lower side of the hollow plate 401 is connected to a nozzle 403, and the air outlet of the nozzle 403 faces the position where the hollow plate 401 is in contact with the conveyor belt. When the hollow plate 401 scrapes off the sludge attached to the surface of the conveyor belt, the nozzle 403 can spray off the sludge attached to the hollow plate 401 to avoid the sludge on the hollow plate 401 accumulating more and more, which affects the output efficiency of the sludge.

[0026] Embodiment 3:

[0027] Reference Figure 1-Figure 3 , a centrifugal device for sludge dewatering, which is basically the same as Example 2, and further: a circle of hollow frame 4 is fixedly connected to the outside of the dewatering box 2, and an air inlet is arranged at the lower end of one side of the hollow frame 4, and the hollow plate 401 is connected to the hollow frame 4. When hot air is filled into the hollow frame 4, since the hollow frame 4 is sleeved on the outside of the dewatering box 2, it can have a good insulation effect on the inside of the dewatering box 2, thereby reducing the rate of heat loss inside the dewatering box 2.

[0028] The inner upper surface of the dehydration box 2 gradually slopes toward the feed inlet. Figure 2 As shown, by tilting the upper surface of the dehydration box 2 toward the position of the feed port, when the hot air enters the dehydration box 2 through the nozzle 402 and the nozzle 403, the hot air will float upward, so the upwardly floating hot air can quickly pass through the mud outlet pipe 101 along the inclined surface into the centrifugal dehydrator body 1, so that the sludge can be heated and dried in the process of separating the sludge from water, further accelerating the efficiency of subsequent sludge drying.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A centrifugal device for sludge dewatering, comprising a centrifugal dewatering machine body (1), wherein the lower ends of both sides of the centrifugal dewatering machine body (1) are respectively connected to a mud outlet pipe (101) and a water outlet pipe (102), wherein: Also includes: A dehydration box (2) is arranged at the lower end of the centrifugal dehydrator body (1), and the feed inlet is connected to the mud outlet pipe (101); Two sets of conveyor belts (3) are symmetrically and staggeredly installed on the dehydration box (2); A hollow plate (401) is transversely fixedly connected in the dehydration box (2) and is located below the conveyor belt (3); The nozzles (402) are connected to the hollow plate (401) at equal distances.

2. A centrifugal device for sludge dewatering according to claim 1, characterized in that: The nozzles (402) are symmetrically connected to the upper and lower sides of the hollow plate (401).

3. A centrifugal device for sludge dewatering according to claim 1, characterized in that: One end of the hollow plate (401) close to the unloading side of the conveyor belt (3) slides against the lower surface of the conveyor belt on the conveyor belt (3).

4. A centrifugal device for sludge dewatering according to claim 3, characterized in that: The lower side of the hollow plate (401) is connected to a nozzle (403), and the air outlet of the nozzle (403) faces the position where the hollow plate (401) is in contact with the conveyor belt.

5. A centrifugal device for sludge dewatering according to claim 1, characterized in that: A circle of hollow frame (4) is fixedly connected to the outside of the dehydration box (2), and an air inlet is arranged at the lower end of one side of the hollow frame (4), and the hollow plate (401) is connected to the hollow frame (4).

6. A centrifugal device for sludge dewatering according to claim 1, characterized in that: The inner upper surface of the dehydration box (2) gradually slopes toward the position of the feed inlet.

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