CN212581738U

CN212581738U - Sludge dewatering device

Info

Publication number: CN212581738U
Application number: CN202021258175.XU
Authority: CN
Inventors: 刘明
Original assignee: Baoding Golden Energy Sanitary Products Co ltd
Current assignee: Baoding Golden Energy Sanitary Products Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-02-23
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a sludge dewatering device, which comprises a water filtering mechanism and an extruding mechanism which are fixed on a frame; the water filtering mechanism comprises more than two groups of water filtering components, and adjacent water filtering components are arranged in a V shape; the water filtering component comprises a water filtering conveyor belt, an upper belt pulley and a lower belt pulley which control the transmission of the water filtering conveyor belt, a supporting roll which plays a supporting role on the water filtering conveyor belt and a collecting plate which is arranged between the upper water filtering conveyor belt and the lower water filtering conveyor belt; the extrusion mechanism comprises an upper filter belt, a lower filter belt, a positioning roller system, a tensioning wheel train and an extrusion roller system for extruding sludge between the upper filter belt and the lower filter belt. The utility model discloses lead to filtering water mechanism and carry out primary dehydration work to mud, carry out twice extrusion dehydration work through the extrusion between oblique squeeze roll and the upper and lower filter belt, carry out the multiple pass extrusion to mud through the straight squeeze roll subassembly of multiple pass, accomplish sludge dewatering work. The utility model discloses a sludge dewatering work is accomplished in the multi-pass dehydration, and the dehydration rate is higher, effectively reduces the volume of mud.

Description

Sludge dewatering device

Technical Field

The utility model relates to a sludge dewatering field especially relates to a sludge dewatering device.

Background

Sludge dewatering is a sludge treatment method in which fluid primary, concentrated or digested sludge is dewatered and converted into semi-solid or solid sludge blocks. At present, the sludge dewatering adopted in China is more in mechanical types, the dewatering treatment is mainly carried out in a spiral sheet extrusion mode, in the existing sewage treatment equipment, a flocculating agent is added into sewage to enable the sewage to form flocculent sludge, a dewatering machine is used for separating solid from liquid, and the wet sludge is dewatered, so that the volume of the sludge and the transportation management cost can be effectively reduced, but the sludge dewatering device in the prior art has the defect of low dewatering rate, and the dewatered sludge still has high water content.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sludge dewatering device to solve the problem that above-mentioned prior art exists, the dehydration rate is higher, effectively reduces the volume of mud, thereby can reduce its transportation administrative cost.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a sludge dewatering device, which comprises a water filtering mechanism and an extruding mechanism which are fixed on a frame.

The water filtering mechanism comprises more than two groups of water filtering components, the water filtering components are sequentially arranged in an inclined manner from top to bottom, and the adjacent water filtering components are arranged in a V shape; the water filtering component comprises a water filtering conveyor belt, an upper belt pulley and a lower belt pulley which control the transmission of the water filtering conveyor belt, a supporting roller which plays a supporting role on the water filtering conveyor belt and a collecting plate which is arranged between the upper water filtering conveyor belt and the lower water filtering conveyor belt; and a first mud scraper is arranged below the lower belt pulley in each group of water filtering components.

The extrusion mechanism comprises an upper filter belt, a lower filter belt, a positioning roller system, a tensioning wheel train and an extrusion roller system for extruding sludge between the upper filter belt and the lower filter belt; the positioning roller system comprises an upper positioning roller and a lower positioning roller which are used for positioning the upper filter belt and the lower filter belt respectively, and a lower belt pulley in the lowermost water filter assembly is positioned above the space between the upper positioning roller and the lower positioning roller; the extrusion roller system comprises a first offset extrusion roller, a second offset extrusion roller and more than two groups of straight extrusion roller assemblies; the straight extrusion roller assembly comprises an upper working roller and a lower working roller; and water collecting grooves are formed below the first inclined squeezing roller, the second inclined squeezing roller and all the lower working rollers, and a second mud scraper is arranged below the lower working rollers in the last group of straight squeezing assemblies.

Preferably, the water filter further comprises a filtering mechanism, and the filtering mechanism is arranged above the inlet of the water filtering component; the filter mechanism comprises a filter screen and a guide plate arranged below the filter screen, and the filter screen and the guide plate are fixed on the rack.

Preferably, the water filter further comprises a stirring mechanism, and the stirring mechanism is arranged above the inlet of the water filtering component; the stirring mechanism comprises a stirring box, a stirring assembly connected with the stirring box through a bearing and an overflow plate arranged on one side of the stirring box; the stirring assembly comprises a shaft connected with the bearing and a helical blade with one end fixedly arranged on the shaft.

Preferably, the first scraper below the lowermost pulley is arranged above between the upper positioning roller and the lower positioning roller.

Preferably, a support is fixedly arranged below the collecting plate, and a groove is formed in the lowest end of the collecting plate and is obliquely arranged.

Preferably, the number of the groups of the straight pinch roll assemblies is three, and the central lines of the three groups of the straight pinch roll assemblies are positioned in the same horizontal plane.

Preferably, the tensioning wheel train comprises an upper tensioning wheel and a lower tensioning wheel which respectively tension the upper filter belt and the lower filter belt; the upper tensioning wheel is arranged between the upper positioning roller and the last group of straight pinch roller assemblies, and the lower tensioning wheel is arranged between the lower positioning roller and the last group of straight pinch roller assemblies.

The utility model discloses a following technological effect: the water passing and filtering mechanism of the utility model carries out primary dehydration work on the sludge, and the sludge is enabled to be inclined from top to bottom in sequence through the plurality of groups of water filtering components and arranged in a V shape, so that the secondary separation work of the cement is completed in the falling process; and performing twice extrusion dehydration work through the extrusion between the eccentric extrusion roller and the upper and lower filter belts, and finally performing multi-pass extrusion on the sludge through the multi-pass straight extrusion roller assembly to complete the sludge dehydration work. The utility model discloses a sludge dewatering work is accomplished in the multi-pass dehydration, and the dehydration rate is higher, effectively reduces the volume of mud.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention.

The water filter device comprises a water filter component 1, a water filter conveyor belt 11, a belt pulley 12, a support roller 13, a collecting plate 14, a first mud scraping plate 15, a support 16, a groove 17, an upper water filtering belt 21, a lower water filtering belt 22, an upper positioning roller 23, a lower positioning roller 24, a first inclined squeezing roller 25, a second inclined squeezing roller 26, an upper working roller 27, a lower working roller 28, a water collecting tank 29, a second mud scraping plate 30, an upper tension wheel 31, a lower tension wheel 32, a filter screen 41, a guide plate 42, a stirring box 51, a stirring component 52, an overflow plate 53, a shaft 521 and a spiral blade 522.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, the utility model provides a sludge dewatering device, including filtering mechanism, rabbling mechanism, drainage mechanism and the extrusion mechanism that sets gradually, filtering mechanism, rabbling mechanism, drainage mechanism and extrusion mechanism are all fixed in the frame.

The filter mechanism includes filter screen 41 and sets up in the guide plate 42 of filter screen 41 below, and filter screen 41 and guide plate 42 are fixed in the frame, because the difference of mud kind and later stage need extrude mud through two work rolls, guarantee that the mud the inside does not have the stone that is greater than last pass reduction, avoid its destruction to the work roll.

The stirring mechanism comprises a stirring box 51, a stirring assembly 52 connected with the stirring box 51 through a bearing and an overflow plate 53 arranged on one side of the stirring box 51; the stirring assembly 52 comprises a shaft 521 connected with a bearing and a spiral blade 522 with one end fixedly arranged on the shaft 521, the stirring assembly 52 is driven by a motor to stir the sludge, so that the sludge is uniformly stirred and cannot be precipitated, and the sludge flows onto the filtering conveyor belt 11 arranged below through the overflow plate 53.

The water filtering mechanism comprises more than two groups of water filtering components 1, the water filtering components 1 are sequentially arranged in an inclined manner from top to bottom, and the adjacent water filtering components 1 are arranged in a V shape; the water filtering component 1 comprises a water filtering conveyor belt 11, an upper belt pulley 12 and a lower belt pulley 12 which control the transmission of the water filtering conveyor belt 11, a supporting roller 13 which supports the water filtering conveyor belt 11 and a collecting plate 14 which is arranged between the upper water filtering conveyor belt 11 and the lower water filtering conveyor belt 11; a bracket 16 is fixedly arranged below the collecting plate 14, a groove 17 is arranged at the lowest end of the collecting plate, and the groove 17 is obliquely arranged. A first mud scraper 15 is arranged below the lower belt pulley 12 in each group of water filtering components 1. The water filtration conveyor belt 11 is made of a filter cloth through which only water can pass.

The sludge flows to the lower water filtering conveyor belt 11 through the upper overflow plate 53, water in the sludge leaks to the lower collecting plate 14 through the water filtering conveyor belt 11, the water flows out of the rack through the grooves 17, and the sludge has a certain interception function, so that the sludge is layered on the water filtering conveyor belt 11, and the water is gathered on the upper layer of the sludge; when mud when the first mud scraper 15 of first group drainage subassembly below, drop on the drainage conveyer belt 11 on the second group drainage subassembly, because the cement separation, on the drainage conveyer belt 11 of below can directly be strikeed to the water in the mud, directly leak the collecting plate 14 on the second group drainage subassembly, because the utility model discloses there is not the existence of bright water in the multiunit drainage subassembly assurance mud.

The extrusion mechanism comprises an upper filter belt 21, a lower filter belt 22, a positioning roller system, a tensioning wheel train and an extrusion roller system for extruding sludge between the upper filter belt 21 and the lower filter belt 22.

The positioning roller system comprises an upper positioning roller 23 and a lower positioning roller 24 which are used for respectively positioning the upper filter belt 21 and the lower filter belt 22, and the lower belt pulley 12 in the lowermost water filter component 1 is positioned above the space between the upper positioning roller 23 and the lower positioning roller 24; the first scraper 15 disposed below the lowermost pulley 12 is located above between the upper registration roller 23 and the lower registration roller 24. The sludge filtered by the water filtering mechanism is ensured to accurately fall onto the lower filter belt 22.

The squeeze roll system comprises a first bias squeeze roll 25, a second bias squeeze roll 26 and three groups of straight squeeze roll assemblies; the straight pinch roll assembly comprises an upper work roll 27 and a lower work roll 28; a water collecting tank 29 is arranged below the first partial extrusion roller 25, the second partial extrusion roller 26 and all the lower working rollers 28, and the number of groups of the straight extrusion roller assemblies is that the central lines of three groups of straight extrusion roller assemblies are positioned in the same horizontal plane. A second scraper 30 is provided below the lower work roll 28 in the last set of straight extrusion assemblies. The tensioning wheel train comprises an upper tensioning wheel 31 and a lower tensioning wheel 32 which respectively tension the upper filtering belt 21 and the lower filtering belt 22; an upper tension pulley 31 is disposed between the upper positioning roller 23 and the last set of straight pinch roller assemblies, and a lower tension pulley 32 is disposed between the lower positioning roller 24 and the last set of straight pinch roller assemblies.

The sludge moves towards the first partial squeezing rollers 25 and the second partial squeezing rollers 26 under the surrounding action of the upper filter belt 21 and the lower filter belt 22, and because the first partial squeezing rollers 25 and the second partial squeezing rollers 26 are not positioned in the same horizontal plane and have a certain angle, the sludge is squeezed and dewatered twice under the combined action of the two groups of partial squeezing rollers and the tensioning gear train by utilizing the squeezing between the partial squeezing rollers and the upper filter belt and the lower filter belt, so that the secondary dewatering work is completed; and the position of the sludge and the upper and lower filter belts is adjusted by arranging the center lines of the second partial extrusion roll 26 and the three groups of straight extrusion roll assemblies in the same horizontal plane. The sludge after the two times of partial extrusion is extruded for three times by the straight extrusion roller assembly for three times, the sludge is extruded and dehydrated, and a sludge cake formed after dehydration is scraped off by the second mud scraper 30, so that the sludge dehydration is completed.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A sludge dewatering device is characterized in that: comprises a water filtering mechanism and an extruding mechanism which are fixed on a frame;

the water filtering mechanism comprises more than two groups of water filtering components (1), the water filtering components (1) are sequentially arranged in an inclined manner from top to bottom, and the adjacent water filtering components (1) are arranged in a V shape; the water filtering component (1) comprises a water filtering conveyor belt (11), an upper belt pulley (12) and a lower belt pulley (12) which control the transmission of the water filtering conveyor belt (11), a supporting roller (13) which plays a supporting role on the water filtering conveyor belt (11), and a collecting plate (14) which is arranged between the upper water filtering conveyor belt and the lower water filtering conveyor belt (11); a first mud scraper (15) is arranged below the lower belt pulley (12) in each group of water filtering components (1);

the extrusion mechanism comprises an upper filter belt (21), a lower filter belt (22), a positioning roller system, a tensioning wheel train and an extrusion roller system for extruding sludge between the upper filter belt (21) and the lower filter belt (22); the positioning roller system comprises an upper positioning roller (23) and a lower positioning roller (24) which are used for positioning an upper filter belt (21) and a lower filter belt (22) respectively, and a lower belt pulley (12) in the lowermost water filter assembly (1) is positioned above a position between the upper positioning roller (23) and the lower positioning roller (24); the extrusion roller system comprises a first offset extrusion roller (25), a second offset extrusion roller (26) and more than two groups of straight extrusion roller assemblies; the straight pinch roll assembly comprises an upper work roll (27) and a lower work roll (28); and water collecting grooves (29) are formed below the first partial extrusion rollers (25), the second partial extrusion rollers (26) and all the lower working rollers (28), and a second mud scraper (30) is arranged below the lower working rollers (28) in the last group of straight extrusion assemblies.

2. The sludge dewatering apparatus according to claim 1, wherein: the water filter further comprises a filtering mechanism, and the filtering mechanism is arranged above the inlet of the water filtering component (1); the filter mechanism comprises a filter screen (41) and a guide plate (42) arranged below the filter screen (41), wherein the filter screen (41) and the guide plate (42) are fixed on the rack.

3. The sludge dewatering apparatus according to claim 1, wherein: the stirring mechanism is arranged above the inlet of the water filtering component (1); the stirring mechanism comprises a stirring box (51), a stirring component (52) connected with the stirring box (51) through a bearing and an overflow plate (53) arranged on one side of the stirring box (51); the stirring assembly (52) comprises a shaft (521) connected with the bearing and a spiral blade (522) with one end fixedly arranged on the shaft (521).

4. The sludge dewatering apparatus according to claim 1, wherein: a first scraper (15) below the lowermost belt pulley (12) is arranged above between the upper positioning roller (23) and the lower positioning roller (24).

5. The sludge dewatering apparatus according to claim 1, wherein: the support (16) is fixedly arranged below the collecting plate (14), a groove (17) is formed in the lowest end of the collecting plate, and the groove (17) is obliquely arranged.

6. The sludge dewatering apparatus according to claim 1, wherein: the number of the groups of the straight extrusion roller assemblies is three, and the center lines of the three groups of the straight extrusion roller assemblies are positioned in the same horizontal plane.

7. The sludge dewatering apparatus according to claim 1, wherein: the tensioning wheel train comprises an upper tensioning wheel (31) and a lower tensioning wheel (32) which respectively tension the upper filtering belt (21) and the lower filtering belt (22); the upper tensioning wheel (31) is arranged between the upper positioning roller (23) and the last group of straight pinch roller assemblies, and the lower tensioning wheel (32) is arranged between the lower positioning roller (24) and the last group of straight pinch roller assemblies.