Quicklime powder adding device for wastewater treatment

Abstract

The utility model provides a quicklime powder feeding device for wastewater treatment, and solves the technical problems that quicklime powder is easy to cake and block and cannot be continuously fed during wastewater treatment at present. Comprising a bin body and an air blowing assembly connected to the bin body, the air blowing assembly is connected with an inert gas source, a feeding pipe is arranged at the top of the bin body, a discharging port is formed in the bottom of the bin body, and an intercepting net is arranged at the discharging port to separate a containing cavity in the bin body from the outer side of the bin body; the pressure relief collecting box is connected to the bin body through a pressure relief pipe; the scraping net assembly is located in the bin body and arranged close to the bottom of the bin body, the scraping net assembly comprises a first driving part and a scraping wheel which are connected, and the first driving part drives the scraping wheel to rotate in the axial direction of the scraping wheel; according to the quick lime feeding device disclosed by the utility model, caking is crushed, so that the device is prevented from being blocked in a quick lime feeding process.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, specifically, relate to a kind of quicklime powder feeding device for wastewater treatment. BACKGROUND

[0002] Quicklime is also known as calcium oxide, which is an inorganic compound with chemical formula CaO. It has physical properties of white powder on the surface, off-white color for impurities, and light yellow or gray color for impurities. It has hygroscopicity. Quicklime can be used as filler, analytical reagent, raw material, building material, vegetable oil decolorizing agent, refractory material, drying agent, industrial flue gas purification, wastewater treatment, and sludge conditioning.

[0003] During wastewater treatment, quicklime powder is often added to adjust the pH and remove heavy metal ions in water. The addition of liquid alkali, which is sodium hydroxide, can also remove heavy metal ions by forming insoluble hydroxides and then separating them through flocculation and precipitation. However, the cost of liquid alkali is much higher than that of quicklime powder, so many wastewater treatment plants choose to use quicklime powder.

[0004] In the prior art, quicklime is usually in powder form and has strong water absorption, which can cause problems such as blockage of conveyors and caking at the bottom of hoppers during transportation and feeding. Therefore, it is difficult to ensure continuous, stable, and accurate feeding of quicklime powder, and operators need to be on site, which reduces labor efficiency and affects the effectiveness of wastewater treatment. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a quicklime powder feeding device for wastewater treatment, which solves the technical problem of caking and blockage of quicklime powder during wastewater treatment, and continuous feeding.

[0006] The utility model achieves the following technical solutions:

[0007] A quicklime powder feeding device for wastewater treatment includes a hopper, a pressure relief collection box, a scraper net assembly, and a screw conveyor.

[0008] The hopper includes a hopper body and a gas blowing assembly connected to the hopper body. The gas blowing assembly is connected to an inert gas source. The hopper body has an inlet pipe at the top and an outlet at the bottom. The outlet is equipped with a blocking net to separate the containing cavity inside the hopper body from the outside of the hopper body.

[0009] The pressure relief collection box is connected to the hopper body through a pressure relief pipe.

[0010] The scraping net assembly is arranged in the bin body and is arranged close to the bottom of the bin body, and the scraping net assembly comprises a first driving member and a scraping wheel connected with each other, and the first driving member drives the scraping wheel to rotate along the axial direction of the scraping wheel.

[0011] The input end of the screw conveyor is communicated with the discharge port at the bottom of the bin body.

[0012] In some embodiments, the scraping wheel comprises a rotating shaft and a plurality of scraping plates arranged on the rotating shaft along the circumferential direction of the rotating shaft, and the first driving member drives the scraping wheel to rotate along the axial direction of the scraping wheel so that the scraping plates abut against or are spaced apart from the intercepting net.

[0013] In some embodiments, the intercepting net is an elastic intercepting net, and the intercepting net is stretched when the scraping plates abut against the intercepting net and is contracted when the scraping plates are spaced apart from the intercepting net.

[0014] In some embodiments, the scraping plates are provided with a silica gel layer at the end away from the rotating shaft.

[0015] In some embodiments, the pressure relief collection tank is filled with water with a liquid level height not higher than the water level height of the pressure relief pipe.

[0016] In some embodiments, the bin body is provided with a stirring device.

[0017] In some embodiments, the pressure relief pipe is provided with a check valve.

[0018] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0019] (1) The utility model discloses a discharge port arranged at the bottom of the bin body, the discharge port is provided with an intercepting net, and the scraping net assembly is matched, under the driving action of the first driving member, the scraping wheel rotates along the axial direction, so that the scraping plates abut against or are spaced apart from the intercepting net, the lime above the intercepting net is scraped and taken, and the lime is assisted to pass through the intercepting net and then enters the screw conveyor to be conveyed, and since the intercepting net is an elastic intercepting net, the scraping action of the scraping plates can make the intercepting net stretch and contract, in the stretching and contracting process of the intercepting net, the lime above the intercepting net is bounced to a certain extent, and the anti-caking operation of the lime powder can be further realized.

[0020] (2) The utility model discloses that the bin body is connected with a gas blowing assembly, the gas blowing assembly is connected with inert gas as a gas source, before the lime is added into the bin body, the inert gas is introduced into the bin body through the gas blowing assembly, and the air in the bin body is discharged, so that the water in the air is prevented from combining with the lime powder, thereby preventing the caking of the lime powder.

[0021] (3) The utility model discloses a stirring device is arranged in the warehouse body, further increase the stirring effect of lime powder in the warehouse body, prevent its agglomeration.

[0022] (4) The utility model discloses a silica gel layer is equipped with on the side of scraper far from rotating shaft, can reduce the rigid collision of both in the scraping process of scraper to the intercept net, increase the service life of device.

[0023] (5) The utility model discloses reasonable in design, simple structure, good practicality. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to make the technical scheme of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope, and for the ordinary skilled person in the art, other related drawings can also be obtained according to these drawings without the creative labor.

[0025] Figure 1 The structure schematic diagram of the quicklime powder feeding device for wastewater treatment provided by the embodiments of the utility model under the condition that the scraper is spaced from the intercept net is shown in the figure.

[0026] Figure 2 The structure schematic diagram of the quicklime powder feeding device for wastewater treatment provided by the embodiments of the utility model under the condition that the scraper is abutted on the intercept net is shown in the figure.

[0027] FIG.

[0028] 110, warehouse body;120, air blowing assembly;130, feeding pipe;140, stirring device;150, intercept net;

[0029] 200, pressure relief collection box;210, pressure relief pipe;

[0030] 300, net scraping assembly;

[0031] 400, screw conveyor. DETAILED DESCRIPTION

[0032] In order to make the technical scheme of the embodiments of the utility model clearer, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope, and for the ordinary skilled person in the art, other related drawings can also be obtained according to these drawings without the creative labor.

[0033] EMBODIMENT

[0034] The utility model embodiment provides a quick -witted lime powder feeding device for wastewater treatment to prevent device from being blocked during quick -witted lime feeding.

[0035] Please refer to Figure 1 And Figure 2 The utility model embodiment provides a quick -witted lime powder feeding device for wastewater treatment, including bin, pressure relief collection box 200, scrape net subassembly 300 and screw conveyor 400;

[0036] Bin includes bin body 110 and the air -blowing subassembly 120 that is connected to bin body 110, and the air -blowing subassembly 120 is connected to inert gas source, and bin body 110 top is equipped with feed pipe 130, and bin body 110 bottom is equipped with discharge gate, and discharge gate is equipped with intercepting screen 150 to separate the containing cavity in bin body 110 and bin body 110 outside, in the embodiment, the discharge gate at bin body 110 bottom is equipped with intercepting screen 150 to separate the containing cavity in bin body 110 and the outside, in the embodiment, feed pipe 130 is set up in the upper of bin body 110, and discharge gate is set up in the lower of bin body 110, in the embodiment, the air -blowing subassembly 120 is communicated with the top of bin body 110, in the embodiment, the air -blowing subassembly 120 includes air -blowing pipe and the air -blowing pipe is connected to air -blowing machine, and air -blowing machine is connected to inert gas, and inert gas is used as gas source, in the embodiment, air -blowing pipe is equipped with valve.

[0037] Pressure relief collection box 200 is connected to bin body 110 through pressure relief pipe 210, in the embodiment, pressure relief collection box 200 is equipped with air outlet pipe, and valve is equipped on air outlet pipe.

[0038] Scrape net subassembly 300 is located in bin body 110 and is set up close to bin body 110 bottom, and scrape net subassembly 300 includes the first driving part and the scraper wheel that are connected, and the first driving part drives the scraper wheel to rotate along the axial direction of scraper wheel to make the scraper wheel act on intercepting screen 150, so that the scraper wheel assists the falling of quick -witted lime located above intercepting screen 150, and then guarantees the continuity of quick -witted lime feeding and breaks the caked quick -witted lime.

[0039] Screw conveyor 400, input end and bin body 110 bottom discharge gate intercommunication.

[0040] In the embodiment, the scraper wheel includes rotating shaft and multiple scrapers that are set on rotating shaft along the circumferential direction of rotating shaft, and the first driving part drives the scraper wheel to rotate along the axial direction of scraper wheel to make the scrapers abut or interval intercepting screen 150, in the embodiment, under the condition that the first driving part drives the scraper wheel to rotate along the axial direction of scraper wheel, the rotation of scraper wheel makes multiple scrapers act on intercepting screen 150 and assist the falling of quick -witted lime located above intercepting screen 150.

[0041] In the embodiment, the intercepting net 150 is an elastic intercepting net 150, under the condition that the scraper abuts against the intercepting net 150, the intercepting net 150 is stretched, under the condition that the scraper is spaced from the intercepting net 150, the intercepting net 150 is contracted, in the embodiment, the stretching and contracting of the intercepting net 150 makes the quicklime powder above the intercepting net 150 bounce or fall, increases the action between the quicklime powders, prevents the quicklime powders from caking, and further assists in breaking the caked quicklime.

[0042] In the embodiment, the silicone layer provided at the end of the scraper away from the rotating shaft can reduce the rigid collision between the scraper and the intercepting net 150 during the scraping process of the scraper on the intercepting net 150, and increase the service life of the device.

[0043] In the embodiment, the pressure relief collecting tank 200 is filled with water with a liquid level height not higher than the water level height of the pressure relief pipe 210, during the process of adding the quicklime into the bin body 110, the quicklime powder may be dusted due to the powdery property, during the pressure relief process, the dust combined with the inert gas remaining in the bin body 110 enters the pressure relief collecting tank 200, and is absorbed by the water filled in the pressure relief collecting tank 200, the operator can extract and reuse, and the waste of the quicklime powder in the dusting process is prevented.

[0044] In the embodiment, the bin body 110 is provided with a stirring device 140, in the embodiment, the stirring device 140 includes a stirring shaft, a stirring driving element and a plurality of stirring blades connected to the stirring shaft. In the embodiment, the stirring driving element drives the stirring shaft to rotate, and in the embodiment, the stirring device 140 is arranged above the scraping net assembly 300 in the vertical direction.

[0045] In the embodiment, the pressure relief pipe 210 is provided with a check valve.

[0046] The use process of the quicklime powder adding device for wastewater treatment of the utility model will be described in detail as follows:

[0047] When the wastewater treatment is carried out, the quicklime powder needs to be added into the wastewater to realize the cleaning of the wastewater, at this time, the inert gas source is introduced into the inside of the bin body 110 through the air blowing assembly 120 to discharge the air in the inside of the bin body 110, after the discharging is completed, the quicklime powder is put into the feeding pipe 130 of the bin body 110, so that the quicklime powder enters the bin body 110, since the pressure relief collecting tank 200 is connected to the bin body 110 through the pressure relief pipe 210, the water liquid filled in the pressure relief collecting tank 200 can absorb the quicklime powder carried by the dust; the stirring device 140 in the inside of the bin body 110 stirs the quicklime powder to break the caking in the inside thereof, when the quicklime powder falls to the upper side of the intercepting net 150, the first driving member drives the scraping wheel to rotate, so that the scraping wheel acts on the intercepting net 150 to assist the falling of the quicklime above the intercepting net 150, and the action of the scraping wheel makes the intercepting net 150 bounce up to further increase the mutual action between the quicklime powders, since the discharge port at the bottom of the bin body 110 is connected to the input end of the screw conveyor 400, under the action of the scraping wheel, the quicklime above the intercepting net 150 is broken into powder by the breaking action of the intercepting net 150, and then falls into the screw conveyor 400 to be conveyed, the output end of the screw conveyor 400 is introduced into the wastewater to complete the adding of the quicklime powder for the wastewater treatment.

[0048] The embodiments of the utility model have at least the following advantages:

[0049] (1) the utility model discloses a bin bottom is equipped with the discharge gate, and the discharge gate is equipped with the intercepting net, and cooperation scraping net subassembly, under the driving action of the first driving member, the scraping wheel rotates along the axial direction, so that the scraper abuts or is spaced apart from the intercepting net, the quicklime above the intercepting net is scraped and is taken, and the quicklime is further conveyed into the screw conveyor, and since the intercepting net is the elastic intercepting net, the scraping action of the scraper can make the intercepting net stretch and contract, in the stretching and contracting process of the intercepting net, the quicklime above the intercepting net can be bounced up to a certain extent, and the anti-caking operation of the quicklime powder can be further realized.

[0050] (2) the utility model discloses that the bin is connected with the air blowing assembly, and the air blowing assembly is connected with inert gas to be used as the gas source, before the quicklime is added into the bin, the inert gas is introduced into the bin through the air blowing assembly to discharge the air in the bin, so as to prevent the water in the air from combining with the quicklime powder, thereby causing the caking of the quicklime powder.

[0051] (3) the utility model discloses that the stirring device is arranged in the bin, and the stirring action of the quicklime powder in the bin is further increased to prevent the caking.

[0052] (4) the utility model discloses that the scraper is equipped with the silica gel layer on the side away from the rotating shaft, which can reduce the rigid collision between the scraper and the intercepting net in the scraping process, and increase the service life of the device.

[0053] (5) The utility model discloses reasonable in design, simple structure, good practicality.

[0054] The above are only preferred embodiments of the utility model, and are not used for limiting the utility model, and for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A quicklime powder dosing device for wastewater treatment, characterized in that: The application relates to a material bin, which comprises a bin body and a gas blowing assembly connected to the bin body, the gas blowing assembly is connected to an inert gas source, the top of the bin body is provided with a feeding pipe, the bottom of the bin body is provided with a discharging port, the discharging port is provided with a blocking net to separate a containing cavity in the bin body from the outside of the bin body, a pressure relief collecting box is connected to the bin body through a pressure relief pipe, a scraping net assembly is arranged in the bin body and close to the bottom of the bin body, the scraping net assembly comprises a first driving element and a scraping wheel which are connected to each other, the first driving element drives the scraping wheel to rotate along the axial direction of the scraping wheel, a spiral conveyor is arranged at the input end of the bin body and communicates with the discharging port of the bin body. The scraping wheel comprises a rotating shaft and a plurality of scraping plates arranged on the rotating shaft along the circumferential direction of the rotating shaft, the first driving element drives the scraping wheel to rotate along the axial direction of the scraping wheel, so that the scraping plates abut or are spaced from the blocking net. The blocking net is an elastic blocking net, the blocking net is stretched when the scraping plates abut the blocking net, and the blocking net is contracted when the scraping plates are spaced from the blocking net. The end of the scraping plate away from the rotating shaft is provided with a silica gel layer. The pressure relief collecting box is filled with water, and the liquid level of the water is not higher than the water level of the pressure relief pipe.

2. The quicklime powder dosing device for wastewater treatment according to claim 1, characterized by The bin body is provided with a stirring device.

3. The quicklime powder dosing device for wastewater treatment according to claim 2, characterized by The pressure relief pipe is provided with a check valve.

4. The quicklime powder dosing device for wastewater treatment according to claim 2, characterized by ​ 5. The quicklime powder dosing device for wastewater treatment according to any one of claims 1 to 4, characterized in that ​ 6. The quicklime powder dosing device for wastewater treatment according to any one of claims 1 to 4, characterized in that ​ 7. The quicklime powder dosing device for wastewater treatment according to any one of claims 1 to 4, characterized by ​

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