CN202322580U

CN202322580U - Sludge spreading device

Info

Publication number: CN202322580U
Application number: CN2011204469674U
Authority: CN
Inventors: 吴炼江; 朱南文; 郑红
Original assignee: JINGJIANG ZHONGDA ENVIRONMENTAL ENGINEERING Co Ltd
Current assignee: JINGJIANG ZHONGDA ENVIRONMENTAL ENGINEERING Co Ltd
Priority date: 2011-11-14
Filing date: 2011-11-14
Publication date: 2012-07-11
Anticipated expiration: 2021-11-14

Abstract

The utility model discloses a sludge spreading device which is used for spreading sludge on a conveyer belt of a filter press after the sludge and accelerant are mixed in a sludge quick-dewatering system. The sludge spreading device comprises a box body and a pair of spreading shafts with opposite rotation directions, wherein spiral belts with opposite rotation directions are installed on the left and the right sides of each spreading shaft respectively; the pair of spiral belts moving oppositely are used for uniformly spreading the sludge on the conveyer belt, and the extrusion phenomenon does not exist during a working process, so that the sludge forms loose granules and does not deform, and the spreading effect is good; and long kidney-shaped connection holes are arranged on both sides of the box body, and the height of the gap between the sludge spreading device and the conveyer belt of the filter press can be adjusted at any moment according to the performance of the sludge to be dewatered. The sludge spreading device is widely applied to sludge dewatering and sludge drying systems.

Description

The mud lying device

Technical field

The utility model relates to environmental protection equipment, especially relates to the mud lying device in a kind of sludge dewatering system.

Background technology

The whole nation sewage work wet mud of annual discharging is more than 5,000,000 tons.A large amount of mud not stabilized, harmless treatment have become the heavy burden of sewage work, again environment have been produced secondary pollution simultaneously.The transportation of mud for ease, depositing and processing and utilization, must carry out further drying to the mud after the preliminary hydro-extraction, reducing mud volume and transport management expense, and is that next step utilizes (as doing fuel, building materials etc.) to create conditions again.Therefore the processed of mud is very necessary.

Existing mud dewatering method has nature mummification, mechanical dehydration and sludge drying etc.Nature drying bed simple structure, floor space people, open type, unhygienic, form secondary pollution easily.Sludge drying, energy consumption is big, and investment is high.

At present, extensively adopt the mechanical dehydration method both at home and abroad, but because mud is the material of difficult dehydration; Directly carry out mechanical dehydration, the dehydration difficulty is in order to solve the difficult problem of mechanical sludge dewatering; Carry out a large amount of research for the sludge dewatering gordian technique both at home and abroad; Comparatively advanced now sludge dewatering system is an one with sludge modification, mechanical dehydration, and it is made up of broken stirring system, delivery system and belt filter press, and this sludge dewatering system in the course of the work; Mud, properties-correcting agent and promotor according to a certain percentage respectively the adding set through separately enter into broken stirring system; In system, carry out fragmentation and mix, be transported on the belt filter press through delivery system then and squeeze, the water cut that makes mud is below 50%.

In order to make belt filter press dehydrating effect in expressing process reach the work-ing life that prolongs conveying belt well; Just must the mud on the conveying belt be paved evenly; Because mud, properties-correcting agent and promotor are mixed with certain viscosity according to a certain percentage, in paving process, can not be squeezed simultaneously.Paving technique used in the prior art all adopts mechanical scraper plate to move back and forth, though employing should technology can be paved mud by middle mind-set both sides, the effect that paves is not ideal; Inhomogeneous owing to pave, had a strong impact on the dehydrating effect of pressure filter, moreover because the discontinuity of conveying belt; Cause its local deformaton; Descend its work-ing life significantly, and the long-time back of using just must be changed, and the cost of sludge dewatering is risen.

The utility model content

The purpose of the utility model is to provide a kind of mud lying device of novel texture; Adopt a pair of heterodromous ribbon that mud is evenly paved on conveying belt; Simultaneously can not occur pushing phenomenon in the course of the work, make mud form the discrete particle shape and can not be out of shape.

The utility model is achieved in that a kind of mud lying device; Comprise casing and a pair of axle that paves; The described a pair of axle that paves is fixed on the described casing; It is characterized in that: a described a pair of sense of rotation that paves is opposite, and paving at described every is equipped with the opposite ribbon of sense of rotation about axle.

Described casing is provided with scrapes material axle, and the said material axle of scraping is provided with equally distributed some scraper plates, describedly scrapes material axle and an axis that paves spool at grade.

Be provided with long waist type connecting hole in said casing both sides.

The utility model compared with prior art has following advantage:

1. adopt a pair of heterodromous ribbon that mud is evenly paved on conveying belt, can not occur pushing phenomenon in the course of the work simultaneously, make mud form the discrete particle shape and can not be out of shape, it is effective to pave.

2. casing is provided with and scrapes the material axle, scrapes the material axle and is provided with scraper plate, can mud better be paved evenly, improves the dehydrating effect of pressure filter, prolongs the work-ing life of conveying belt.

3. be provided with long waist type connecting hole in the casing both sides, can according to the mud performance that will dewater to regulate at any time the space height between mud lying device and the pressure filter conveying belt.

Description of drawings

Fig. 1 is the structural representation of the said ribbon whipping appts of the utility model;

1. casing 2. axle 3. ribbons 4. that pave are scraped material axle 5. scraper plates 6. long waist type connecting holes.

Embodiment

Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model, and all technical schemes that are equal to also belong to the category of the utility model, and the scope of patent protection of the utility model should be limited each item claim.

As can be seen from Figure 1; A kind of mud lying device; Comprise casing 1 and a pair of axle 2 that paves; The described a pair of axle 2 that paves is fixed on the described casing 1, it is characterized in that: described a pair of axle 2 sense of rotation that pave are opposite, at the described every axle about 2 that paves the opposite ribbon of sense of rotation 3 are installed.

Described casing 1 is provided with scrapes material axle 4, and the said material axle 4 of scraping is provided with equally distributed some scraper plates 5, and the described axis of scraping material axle 4 and the axle 2 that paves at grade.

Be provided with long waist type connecting hole 6 in said casing 1 both sides.

In the course of the work, mixed mud is got into by casing 1 edge, under the effect of ribbon 3 on the axle 2 that paves; Mud is paved to both sides by the centre, is driven forward by the pressure filter conveying belt of its underpart, paves spools 2 o'clock to another root; Mud is paved to the centre by both sides under the effect of ribbon 3, makes the effect that paves reach best, when mud is transported to when scraping material axle 4 belows; Effect scraping material axle 4 upper scraping plates 5 makes the mud paving thickness on the conveying belt even.

Claims

1. mud lying device; Comprise casing (1) and a pair of axle (2) that paves; The described a pair of axle (2) that paves is fixed on the described casing (1); It is characterized in that: described a pair of axle (2) sense of rotation that paves is opposite, and paving at described every is equipped with the opposite ribbon of sense of rotation (3) about axle (2).

2. a kind of mud lying device according to claim 1; It is characterized in that: described casing (1) is provided with scrapes material axle (4); The said material axle (4) of scraping is provided with equally distributed some scraper plates (5), and the described axis of scraping material axle (4) and the axle (2) that paves at grade.

3. a kind of mud lying device according to claim 1 is characterized in that: be provided with long waist type connecting hole (6) in said casing (1) both sides.