CN111410403A

CN111410403A - Nickel-containing sludge treatment equipment

Info

Publication number: CN111410403A
Application number: CN202010211094.2A
Authority: CN
Inventors: 陆会岭; 刘大勇
Original assignee: Taizhou Huahao Scrap Metal Comprehensive Utilization Co ltd
Current assignee: Taizhou Huahao Scrap Metal Comprehensive Utilization Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-07-14

Abstract

The invention discloses nickel-containing sludge treatment equipment which comprises a sludge slurrying structure, a medicament adding channel and a mixing and stirring structure, wherein the medicament adding channel is arranged on the sludge slurrying structure; the sludge slurrying structure is arranged above the medicament adding channel, and the mixing and stirring structure is arranged below the medicament adding channel. The sludge is treated by a chemical precipitation method of slurrying the sludge, adding a sodium hydroxide solution, a coagulant PAC and a coagulant PAM into a stirring container to generate floccule precipitates, and the sludge containing nickel is treated by the method, so that great convenience can be provided for the subsequent sludge press filtration process. The efficiency is high.

Description

Nickel-containing sludge treatment equipment

Technical Field

The invention relates to the technical field of resource recycling and reutilization of industrial wastes, in particular to nickel-containing sludge treatment equipment.

Background

With the continuous development and development of the industry, the industrial discharge causes the most serious problem at present, some wastes containing heavy metals are discharged in rivers and soils, so that the environment is greatly damaged, nickel-containing waste water and sludge are listed by the nation and are dangerous wastes, the methods for treating nickel-containing sludge at present comprise a plurality of methods such as incineration, chemical precipitation, electrolysis and the like, but have respective disadvantages, and before the nickel-containing sludge is subjected to filter pressing by a filter press, the processes such as slurrying and chemical precipitation are required, so that equipment capable of treating the process at this stage is required.

Disclosure of Invention

Aiming at the problems, the invention provides nickel-containing sludge treatment equipment which can mechanically pulp sludge and chemically precipitate, reduce the labor intensity, has high efficiency, recycles the effective components in the nickel-containing sludge and meets the requirement of environmental protection.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the utility model provides a nickeliferous sludge treatment equipment, includes sludge slurrying structure, and the medicament adds the passageway, mixes the stirring structure, its characterized in that: the sludge slurrying structure is arranged above the medicament adding channel, and the mixing and stirring structure is arranged below the medicament adding channel.

Sludge slurrying structure include feed inlet, pulp container, water pump, pulp agitator motor, sideslip baffle, screw rod, screw motor, pulp stirring vane, bottom mud anti-precipitation flabellum, pulp container fixed mounting on the protruding platform of the bucket that drops is beaten to pulp mud, there is the feed inlet on the pulp container, the both sides fixed mounting of pulp container has the water pump, pulp agitator motor fixed mounting is at the terminal surface of pulp container, pulp stirring vane be the cross distribution, its central point puts fixed mounting and has bottom mud anti-precipitation flabellum, sideslip baffle slidable mounting on the pulp container, its below is connected with the screw rod with the spiral pair, screw rod and screw motor fixed connection, screw motor fixed mounting is on the protruding platform of agitator vessel bottom plate.

The medicament adding channel comprises a slurried sludge falling barrel, a NaOH solution injector, a coagulant PAC injector and a flocculant PAM injector, wherein the inner wall of the slurried sludge falling barrel is made of fiber reinforced plastics, the slurried sludge falling barrel is fixedly installed on a stirring container, the bottom end of the slurried sludge falling barrel is communicated with the stirring container, and the NaOH solution injector, the coagulant PAC injector and the flocculant PAM injector are respectively and fixedly installed on the side surface of the slurried sludge falling barrel.

The mixing and stirring structure comprises a stirring container bottom plate, a discharge inclined plate, a stirring motor, a cylindrical stirring shaft and a stirring container, wherein the stirring container bottom plate is slidably mounted at the bottom of the stirring container, the stirring container bottom plate is provided with a handle, the discharge inclined plate is fixedly mounted on a device base, the stirring motor is fixedly mounted on a device rack, the cylindrical stirring shaft is fixedly connected with the stirring motor, and the cylindrical stirring shaft is rotatably mounted on the stirring container.

Furthermore, one half of the transverse moving baffle is solid, and the other half of the transverse moving baffle is provided with a circular through hole.

Furthermore, the inner wall of the stirring container is made of fiber reinforced plastics.

The invention has the beneficial effects that: (1) in the slurrying treatment, the blades distributed in a crossed manner can better refine the sludge; (2) the bottom sludge precipitation prevention fan blade can lift sludge sinking at the bottom in the slurrying process, so that the sludge is slurried more fully; (3) the three agent injectors can add sodium hydroxide, coagulant and flocculant into the slurried sludge to enable the slurried sludge to be chemically precipitated; (4) the stirring shaft in the stirring container is cylindrical, so that the sludge residue can be reduced.

Drawings

FIG. 1 is a schematic view of an overall structure of a nickel-containing sludge treatment facility in a view direction according to an embodiment of the present invention;

FIG. 2 is a schematic view of another view-direction of the overall structure of the nickel-containing sludge treatment facility shown in FIG. 1;

FIG. 3 is a schematic view of the overall structure of a nickel-containing sludge treatment facility shown in FIG. 1 in another view direction;

FIG. 4 is a schematic view of the overall structure of the nickel-containing sludge treatment facility shown in FIG. 1 in another view direction;

FIG. 5 is a schematic view of the combination of the slurrying stirring blades of the present invention.

Element 2 names and designations in the drawings:

1-sludge slurrying structure; 2-a medicament addition channel; 3-mixing and stirring structure; 101-a feed inlet; 102-a slurrying vessel; 103-a water pump; 104-slurrying and stirring motor; 105-a traversing gate; 106-screw; 107-screw motor; 108-slurrying stirring blades; 109-bottom sludge anti-precipitation fan blades; 201-slurried sludge falling barrel; 202-NaOH solution injector; 203-coagulant PAC injector; 204-flocculant PAM syringe; 301-stirred vessel floor; 302-discharge sloping plate; 303-stirring motor; 304-cylindrical stirring shaft; 305-stirring vessel.

Detailed Description

The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.

The nickel-containing sludge treatment equipment shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 comprises a sludge slurrying structure 1, a chemical adding channel 2 and a mixing and stirring structure 3, wherein the sludge slurrying structure 1 is arranged above the chemical adding channel 2, and the mixing and stirring structure 3 is arranged below the chemical adding channel 2.

The sludge slurrying structure 1 comprises a feeding hole 101, a slurrying container 102, a water pump 103, a slurrying and stirring motor 104, a traverse baffle 105, a screw 106, a screw motor 107, slurrying and stirring blades 108 and bottom sludge sedimentation prevention fan blades 109; the slurrying container 102 is fixedly installed on a protruding platform of a slurried sludge falling barrel 201, a feed inlet 101 is formed in the slurrying container 102, water pumps 103 are fixedly installed on two sides of the slurrying container 102, slurrying can be carried out only by adding a proper amount of water into the slurry after the sludge is added, a slurrying stirring motor 104 is fixedly installed on the end face of the slurrying container 102, slurrying stirring blades 108 are distributed in a crossed mode, blocky sludge is enabled to be better and finer, the slurrying is enabled to be sufficient, bottom sludge precipitation prevention fan blades 109 are fixedly installed in the center of the slurrying container, the bottom sludge can be lifted in the slurrying process, insufficient slurrying is prevented, large-particle sludge is remained, a transverse moving baffle 105 is slidably installed on the slurrying container 102, the lower portion of the transverse moving baffle is connected with a screw 106 through a screw pair, the screw 106 is fixedly connected with a. After the slurry is homogenized, the screw motor 107 rotates the screw 106 to move the traverse baffle 105, and the end having the circular hole is communicated with the bottom of the slurry container 102 to drop the slurry sludge.

The agent adding channel 2 comprises a slurried sludge falling barrel 201, an NaOH solution injector 202, a coagulant PAC injector 203 and a flocculant PAM injector 204, wherein the inner wall of the slurried sludge falling barrel 201 is made of fiber reinforced plastics to prevent the agent from being corroded, the slurried sludge falling barrel 201 is fixedly arranged on a stirring container 305, the bottom end of the slurried sludge falling barrel 201 is communicated with the stirring container 305, the NaOH solution injector 202 and the NaOH solution injector 202 inject a proper amount of NaoH solution, nickel ions in sludge and sodium hydroxide undergo a chemical reaction to generate flocculent precipitates, the coagulant PAC injector 203 and the flocculant PAM injector 204 are respectively and fixedly arranged on the side surface of the slurried sludge falling barrel 201. Coagulant PAC and flocculant PAM make the micro floccules in the sludge mutually adsorbed and called large floccules.

Mix stirring structure 3 and include stirred tank bottom plate 301, ejection of compact swash plate 302, agitator motor 303, cylindrical stirring axle 304, stirred tank 305, stirred tank bottom plate 301 slidable mounting is in stirred tank 305's bottom, there is the handle on stirred tank bottom plate 301, ejection of compact swash plate 302 fixed mounting is on the device base, agitator motor 303 fixed mounting is in the device frame, cylindrical stirring axle 304 and agitator motor 303 fixed connection, and cylindrical stirring axle 304 is rotatory to be installed on stirred tank 305, adopt the columniform (mixing) axle to make sludge residue reduce.

One half of the traverse baffle 105 is solid and serves as a baffle, and the other half of the traverse baffle is provided with a circular through hole which serves as an outlet of the slurried sludge and controls the passing of the slurried sludge by sliding. The inner wall of the stirring container 305 is made of fiber reinforced plastic to prevent corrosion of the chemical.

The working principle of the invention is as follows: after sludge raw materials enter a slurrying container 102 from a feeding hole 101, water pumps 103 on two sides of the slurrying container 102 inject water into the slurrying container 102, at the moment, a transverse baffle 105 blocks the bottom of the slurrying container 102, a slurrying stirring motor 104 drives slurrying stirring blades 108, bottom sludge anti-precipitation fan blades 109 rotate in the slurrying container 102 to stir and mix sludge and water, the sludge is finer due to the cross distribution of the slurrying stirring blades 108, slurrying is more sufficient, the bottom sludge anti-precipitation fan blades 109 are in the center and rotate at the bottom of the slurrying container 102, sludge falling into the bottom can be lifted, and precipitation is prevented from failing to obtain sufficient slurrying. After slurrying is finished, the screw motor 107 drives the screw 106 to rotate, the transverse baffle 105 slides to enable the lower end of the slurrying container 102 to be communicated with a round hole of the transverse baffle, slurried sludge falls from the slurrying container 102 and falls into the stirring container 305 through the slurrying sludge falling barrel 201, the NaOH solution injector 202 starts to inject a proper amount of NaoH solution, nickel ions in the sludge and sodium hydroxide undergo a chemical reaction to generate flocculent precipitates, in the process, the stirring motor 303 drives the cylindrical stirring shaft 304 to fully stir the sludge to enable the sludge to react more fully, and after the sodium hydroxide solution is added, a coagulant PAC and a flocculating agent PAM are sequentially injected respectively to enable micro flocculent phases in the sludge to be mutually adsorbed to form large floccules. After the sludge and the medicament are fully reacted, the bottom plate 301 of the stirring container is manually pulled out, so that the sludge falls out of the device for filter pressing treatment.

The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.

Claims

1. The utility model provides a nickeliferous sludge treatment equipment, includes sludge slurry structure (1), medicament adds passageway (2), mixes stirring structure (3), its characterized in that: the sludge slurrying structure (1) is arranged above the medicament adding channel (2), and the mixing and stirring structure (3) is arranged below the medicament adding channel (2);

the sludge slurrying structure (1) comprises a feed inlet (101), a slurrying container (102), a water pump (103), a slurrying stirring motor (104), a traverse baffle (105), a screw (106), a screw motor (107), slurrying stirring blades (108) and bottom sludge anti-precipitation fan blades (109), wherein the slurrying container (102) is fixedly arranged on a projection platform of a slurrying sludge falling barrel (201), the slurrying container (102) is provided with the feed inlet (101), the two sides of the slurrying container (102) are fixedly provided with the water pump (103), the slurrying stirring motor (104) is fixedly arranged on the end surface of the slurrying container (102), the slurrying stirring blades (108) are distributed in a cross way, the center position of the slurrying stirring blade is fixedly provided with the bottom sludge anti-precipitation fan blades (109), the traverse baffle (105) is slidably arranged on the slurrying container (102), and the lower part of the traverse baffle is connected with the screw (, the screw 106 is fixedly connected with a screw motor (107), and the screw motor (107) is fixedly arranged on a protruding platform of a bottom plate (301) of the stirring container;

the medicament adding channel (2) comprises a slurried sludge falling barrel (201), an NaOH solution injector (202), a coagulant PAC injector (203) and a flocculant PAM injector (204), wherein the inner wall of the slurried sludge falling barrel (201) is made of fiber reinforced plastics, the slurried sludge falling barrel (201) is fixedly installed on a stirring container (305), the bottom end of the slurried sludge falling barrel (201) is communicated with the stirring container (305), and the NaOH solution injector (202), the coagulant PAC injector (203) and the flocculant PAM injector (204) are respectively and fixedly installed on the side surface of the slurried sludge falling barrel (201);

mixing stirring structure (3) include stirred tank bottom plate (301), ejection of compact swash plate (302), agitator motor (303), cylindrical stirring axle (304), stirred tank (305), stirred tank bottom plate (301) slidable mounting have the handle in stirred tank's (305) bottom, stirred tank bottom plate (301)), ejection of compact swash plate (302) fixed mounting is on the device base, agitator motor (303) fixed mounting in the device frame, cylindrical stirring axle (304) and agitator motor (303) fixed connection to cylindrical stirring axle (304) rotation mounting is on stirred tank (305).

2. The nickel-containing sludge treatment facility according to claim 1, characterized in that: one half of the transverse moving baffle (105) is solid, and the other half is provided with a circular through hole.

3. The nickel-containing sludge treatment facility according to claim 1, characterized in that: the inner wall of the stirring container (305) is made of fiber reinforced plastics.