CN210891710U

CN210891710U - Wet-type feed bin with vacuum water filtering device

Info

Publication number: CN210891710U
Application number: CN201921761407.0U
Authority: CN
Inventors: 马毅
Original assignee: Qingdao Ruichen Power Environmental Protection Equipment Co ltd
Current assignee: Qingdao Ruichen Power Environmental Protection Equipment Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-06-30
Anticipated expiration: 2029-10-18

Abstract

The wet-type storage bin with the vacuum water filtering device comprises a funnel-shaped wet-type slag bin, wherein an ash residue outlet is arranged at the bottom of the wet-type slag bin, the upper end of the wet type slag bin is provided with an ash inlet, the ash outlet is provided with an opening mechanism, the side wall of the lower part of the wet type slag bin is provided with a water outlet, the water outlet is provided with a filter screen and a vacuum chamber, the vacuum chamber is positioned outside the filter screen, the side wall of the vacuum chamber is provided with a vacuum-pumping port and a water outlet, the vacuum-pumping port is positioned above the water outlet and is connected with the inlet of the water-sealed vacuum pump through a pipeline, the vacuum pump ensures that the pressure of the inner cavity of the wet slag bin at the two sides of the filter screen is at least 50Kp higher than the pressure of the vacuum chamber, the vacuum pumping port is provided with a grating door consisting of a plurality of blades, the two ends of each blade are provided with a tightening spring, when the pressure outside the grid door is smaller than the pressure in the vacuum chamber, the grid door is opened, and the vacuum chamber and the vacuum pump inlet form a passage. The utility model discloses rational in infrastructure, maintenance volume are low, set up real empty room and utilize the pressure differential to separate out the water in the wet material.

Description

Wet-type feed bin with vacuum water filtering device

Technical Field

The utility model belongs to boiler auxiliary engine field relates to the improvement of ash storehouse dehydration structure, especially relates to wet-type feed bin with vacuum water filtering device.

Background

Because wet material moisture content is high, general moisture content is about 20%, because moisture can be appeared at storage storehouse deposit in-process to all kinds of wet materials, lead to a large amount of sewage to leak from the bin outlet in storage storehouse, cause serious pollution to the environment, simultaneously, still contain a large amount of slight particles in the sewage, heavily pollute the result more and extravagant material.

At present, the domestic wet slag bin is mainly improved from the aspect of sealing performance, but the actual anti-pollution effect is limited; the negative pressure dehydration system is transformed from the whole wet slag bin, a sealed slag pot and a vacuum system are required to be added, the equipment investment is large, the occupied area is large, the feeding and discharging of wet materials are troublesome, and the operation and maintenance cost is greatly increased.

For example, the chinese patent (No. CN208626723U) discloses a "ash-slag ceramic vacuum filter device", which comprises a plurality of side filters installed on the side wall of the ash-slag bin body and connected with the main water pipeline located at the lower part of the ash-slag bin body, a central filter installed at the central part of the ash-slag bin body and connected with the main water pipeline located at the lower part of the ash-slag bin body, an inflatable seal ring main body installed at the bottom of the ash-slag bin body, a water storage tank connected with the main water pipeline, and a vacuum pump connected with the water storage tank.

Then chinese patent (No. CN202613465U) discloses an "ash dehydration bin", relates to the field of boiler ash dehydration of thermal power stations, and this ash dehydration bin includes that upper portion is cylindrical, and the lower part is conical storehouse body, and the storehouse body encloses into the ash space, be provided with storehouse body drainage device on the storehouse body, storehouse body drainage device connects the drain pipe, storehouse body bottom is provided with the row's slag door seat, be provided with the slag discharging hole on the row's slag door seat, be provided with the slag discharging door of control slag discharging hole switching under the row's slag door seat, ash space middle part is provided with the central drainage device that extends to the lower part from ash space top, central drainage device connects the drain pipe.

The above-mentioned wet-type material dewatering equipment that discloses still has problems such as dehydration inadequately, structure complicacy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wet-type lime-ash material screw extrusion dewatering device for solve among the prior art to wet-type material dewatering equipment maintenance volume big, the not enough problem of dehydration effect.

In order to realize the utility model discloses an aim at, adopt following technical scheme:

the wet-type storage bin with the vacuum water filtering device comprises a funnel-shaped wet-type slag bin, wherein an ash residue outlet is arranged at the bottom of the wet-type slag bin, the upper end of the ash-slag outlet is provided with an ash-slag inlet, the ash-slag outlet is provided with an opening mechanism for opening or closing the ash-slag outlet, the side wall of the lower part of the wet slag bin is provided with a water outlet, the water outlet is provided with a filter screen and a vacuum chamber, the vacuum chamber is positioned outside the filter screen, the side wall of the vacuum chamber is provided with a vacuumizing port and a water outlet, the vacuumizing port is positioned above the water outlet and is connected with the inlet of a water-sealed vacuum pump through a pipeline, the vacuum pump ensures that the pressure of the inner cavity of the wet slag bin at the two sides of the filter screen is at least 50Kp higher than the pressure of the vacuum chamber, the vacuum pumping port is provided with a grating door consisting of a plurality of blades, the two ends of each blade are provided with a tightening spring, when the pressure outside the grid door is smaller than the pressure in the vacuum chamber, the grid door is opened, and the vacuum chamber and the vacuum pump inlet form a passage.

In order to further improve the utility model discloses an effect can also adopt following technical scheme:

according to the wet type storage bin with the vacuum water filtering device, the water outlet is connected with the inlet of the water pump through the pipeline, and the outlet of the water pump is communicated with the water collecting tank.

According to the wet type storage bin with the vacuum water filtering device, the spray head is installed in the vacuum chamber and is communicated with the backwashing system through a pipeline.

According to the wet-type storage bin with the vacuum water filtering device, the rapping device for preventing ash adhesion is arranged on the side wall of the middle part of the wet-type slag storage bin.

According to the wet type storage bin with the vacuum water filtering device, the filter screen is a stainless steel filter screen, and the meshes of the stainless steel filter screen are 20-40.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses only need reform transform the outlet in wet-type sediment storehouse, form local real empty room, utilize the pressure differential more than the 50Kp in filter screen both sides to separate out the water in the wet material, the moisture content of greatly reduced wet-type material causes lime-ash water to separate out and pollute all ring edge borders in avoiding follow-up storage, the transportation. Because the space of the vacuum chamber is small and the grid door is arranged on the vacuumizing port, the power of the vacuum pump can be better reduced, and the electric energy and the operation cost are saved.

2. The water separated out from the wet materials can be collected into the water collecting tank through the water suction pump and then reused after being filtered so as to save water resources. Except that, the utility model discloses rational in infrastructure, maintenance volume are low, to the phenomenon that the filter screen blockked up, still are provided with anti-cleaning system, to the problem of wet-type sediment storehouse inner wall of wet-type material adhesion, the lower part is provided with the knocker in wet-type sediment storehouse, is automatic and the timing operation to practice thrift manpower and maintenance cost.

Drawings

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

fig. 2 is an enlarged schematic view of the vacuum chamber of fig. 1.

Reference numerals: 1-wet type slag bin, 2-ash slag outlet, 3-opening mechanism, 4-water outlet, 5-filter screen, 6-vacuum chamber, 7-vacuum pump, 8-grating door, 9-water pump, 10-water collecting tank, 11-spray head, 12-back washing system and 13-vibrator.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the wet bunker with the vacuum water filtering device disclosed in this embodiment includes a funnel-shaped wet bunker 1, an ash outlet 2 is disposed at the bottom of the wet bunker 1, an ash inlet is opened at the upper end of the ash outlet 2, and an opening mechanism 3 for opening or closing the ash outlet 2 is installed on the ash outlet 2. The ash residue outlet 2 is opened by an opening mechanism 3 which is composed of dewatered ash residue and the like and is driven by an actuator to drive a valve and the like, and then the ash residue is directly transported to a transport vehicle.

The side wall of the lower part of the wet-type slag bin 1 is provided with a water outlet 4, the water outlet 4 is provided with a filter screen 5 and a vacuum chamber 6, wherein the filter screen 5 is a stainless steel filter screen 5, and the meshes of the filter screen 5 are between 20 and 40.

The vacuum chamber 6 is located the filter screen 5 outside, and it has evacuation mouth and delivery port to open on the 6 lateral walls in vacuum chamber, and the evacuation mouth is located the delivery port top, and the evacuation mouth passes through the 7 imports of pipe connection water-sealed vacuum pump, through vacuum pump 7 makes 1 inner chamber pressure in the wet-type slag storehouse of filter screen 5 both sides be greater than vacuum chamber 6 pressure 50Kp at least.

As shown in FIG. 2, in this embodiment, a grille door 8 composed of a plurality of blades is installed on the vacuum-pumping port, both ends of the blades are provided with tightening springs, when the pressure outside the grille door 8 is smaller than the pressure in the vacuum chamber 6, the grille door 8 is opened, and the vacuum chamber 6 and the inlet of the vacuum pump 7 form a passage. Namely, when the vacuum pump 7 works, the pressure outside the grating door 8 is reduced, and the grating door 8 is opened by utilizing the action of the pressure difference blade driven by the tightening spring; when the vacuum pump 7 stops working or the pressure outside the grid door rises, the blades are reset to close the grid door 8, so that the negative pressure condition and the water separation effect in the vacuum chamber 6 can be ensured, the vacuum pump 7 is controlled in a frequency conversion manner to reduce the power consumption and reduce the cost.

Particularly, the utility model discloses only need reform transform outlet 4 to wet-type sediment storehouse 1, form local real empty room 6, utilize the pressure differential more than 5 both sides 50Kp of filter screen to separate out the water in the wet material, the moisture content of greatly reduced wet-type material avoids causing in follow-up storage, the transportation that lime-ash water is separated out and pollutes all ring edge borders. Because the space of the vacuum chamber 6 is small and the grid door 8 is arranged on the vacuumizing port, the power of the vacuum pump 7 can be better reduced, and the electric energy and the operation cost are saved.

As shown in FIG. 1, the water outlet of the present embodiment is connected to the inlet of a water pump 9 through a pipe, and the outlet of the water pump 9 is communicated with a water collection tank 10. The water separated out from the wet materials can be collected into the water collecting tank 10 through the water suction pump 9, and then is reused after being filtered, so that water resources are saved.

The utility model has reasonable structure and low maintenance amount, and is provided with a backwashing system aiming at the phenomenon of the blockage of the filter screen 5, a spray head 11 is arranged in the vacuum chamber 6, and the spray head 11 is communicated with the backwashing system 12 through a pipeline; aiming at the problem that wet materials are attached to the inner wall of the wet slag bin 1, the vibrator 13 is arranged at the middle lower part of the wet slag bin 1 and runs automatically and regularly, so that the labor and the maintenance cost are saved.

The technical contents not described in detail in the present invention are all known techniques.

Claims

1. The wet-type storage bin with the vacuum water filtering device comprises a funnel-shaped wet-type slag bin, wherein an ash outlet is formed in the bottom of the wet-type slag bin, an ash inlet is formed in the upper end of the wet-type slag bin, an opening mechanism used for opening or closing the ash outlet is installed on the ash outlet, the wet-type slag bin is characterized in that a water outlet is formed in the side wall of the lower portion of the wet-type slag bin, a filter screen and a vacuum chamber are installed on the water outlet, the vacuum chamber is located outside the filter screen, a vacuumizing opening and a water outlet are formed in the side wall of the vacuum chamber and located above the water outlet, the vacuumizing opening is connected with the inlet of a water-sealed vacuum pump through a pipeline, the pressure of an inner cavity of the wet-type slag bin on the two sides of the filter screen is at least greater than the pressure of the vacuum chamber by 50Kp through the vacuum pump, a, the vacuum chamber and the vacuum pump inlet form a passage.

2. The wet storage bin with the vacuum water filtering device according to claim 1, wherein the water outlet is connected with an inlet of a water pump through a pipeline, and an outlet of the water pump is communicated with the water collecting tank.

3. The wet storage bin with the vacuum water filtering device according to claim 1, wherein a spray head is installed in the vacuum chamber, and the spray head is communicated with the backwashing system through a pipeline.

4. The wet storage bin with the vacuum water filtering device is characterized in that a vibrator for preventing ash from being attached is installed on the side wall of the middle part of the wet slag storage bin.

5. The wet type storage bin with the vacuum water filtering device is characterized in that the filter screen is a stainless steel filter screen, and the meshes of the stainless steel filter screen are 20-40.