CN217188590U

CN217188590U - Mixing plant air purification device utilizing concrete production mixing water

Info

Publication number: CN217188590U
Application number: CN202220116892.1U
Authority: CN
Inventors: 屈波
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-08-16
Anticipated expiration: 2032-01-17

Abstract

The utility model relates to an utilize mixing station air purification device of concrete production mix water, including air pipe, air pipe one end is established to the pipeline entry, and the other end is established to the pipeline export, the pipeline exit is equipped with fog dispersal decompression board, be equipped with the fan in the air pipe, the air that the fan will contain the dust inhales from the pipeline entry, be equipped with the shower in the air pipe between fan and the pipeline export, shower and the mixing in the mixing station use water pipeline intercommunication, the shower sprays the mix water blowout to the inspiratory air and purifies, and the mix water after the air spray purifies flows from the pipeline export, and finally flows in the water metering scale fill in the mixing station. Has the advantages of reasonable structural design, no need of additional water source, basically no influence on the original production process and structure of the mixing plant, good air purification effect, continuous and reliable purification and the like.

Description

Mixing plant air purification device utilizing concrete production mixing water

The technical field is as follows:

the utility model relates to a mixing plant air purification technical field, concretely relates to utilize mixing plant air purification device of concrete production mix water.

Background art:

the mixing plant is mainly used for concrete construction engineering and mainly used for mixing concrete, and is also called a concrete mixing plant. The working environment of the mixing station is relatively closed, the air pollution form mainly comprises raised dust conveyed by sand and stones in the production process and dust leaked by powder, and a powder scale, a water scale, an additive scale and a sand and stone temporary storage hopper are distributed on a metering layer of the mixing station, wherein the raised dust pollution of the surrounding environment caused by sand and stone feeding is the most serious by the open temporary storage hopper.

In order to reach the environmental protection acceptance standard, the existing mixing plant is provided with a corresponding air purification device, wherein the most widely applied method is that a fan is used for extracting air containing dust to enable the air to form air flow, then the air flow passes through filter media such as filter elements, filter cloth and the like, and solid particles with certain particle sizes are adsorbed or intercepted by the filter media. However, in practical applications, there still exist some deep technical problems, for example, the air filtering effect mainly depends on the porosity and pore size of the filter medium, so that dust with a particle size smaller than the pores of the filter medium cannot be filtered; if dust particles are easily blocked in pores or adhered to the surface of a medium, the medium needs to be frequently and regularly disassembled and cleaned, the air is inconvenient and difficult to thoroughly clean, the air purification effect is increasingly poor, even secondary pollution is generated, and the health of workers and the normal operation of equipment are influenced. The air purification scheme based on the existing mixing plant is difficult to meet the actual purification requirement, so that a better air purification scheme is needed to be designed, the better purification effect is expected to be achieved on the premise of basically not changing the original structure and the working flow, and the purification effect is lasting and reliable.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

The utility model has the following contents:

an object of the utility model is to solve the problem that prior art exists, provide the stirring station air purification device who utilizes concrete production mix water, have that structural design is reasonable, need not extra water source, do not basically have influence, air purification is effectual, purify advantages such as lasting reliable to the former production process and the structure of stirring station.

The utility model discloses an adopt following technical scheme to realize above-mentioned purpose:

utilize mixing station air purification device of concrete production mix water, including air pipe, air pipe one end is established to the pipeline entry, and the other end is established to the pipeline export, the pipeline exit is equipped with fog dispersal decompression board, be equipped with the fan in the air pipe, the fan inhales the air that contains the dust from the pipeline entry, be equipped with the shower in the air pipe between fan and the pipeline export, shower and the mixing of mixing station in original water pipeline intercommunication, the shower sprays the mix water blowout to the air of inhaling and purifies, and the mix water after the air spray purifies flows from the pipeline export, and finally flows in the water measurement scale fill in the mixing station.

The spraying pipe is provided with a plurality of spraying ports at intervals, the spraying ports spray mixing water into a water curtain, and the water curtain purifies sucked air.

A plurality of airflow guide holes are formed in the side wall of one end, close to the outlet of the pipeline, of the ventilating pipeline at intervals.

The fog dissipation pressure reducing plate is designed into a conical structure, and a space is reserved between the fog dissipation pressure reducing plate and the ventilation pipeline.

And an airflow guide plate is arranged at the bottom of the fog dissipation and pressure reduction plate.

And a dust concentration detector is arranged at the inlet of the pipeline.

A protective net is arranged at one end, close to the inlet of the pipeline, in the ventilation pipeline.

The outlet of the pipeline is arranged above the water metering scale bucket.

Air pipe includes the pipeline A of vertical setting, pipeline A is connected with a pipeline B at least, pipeline A lower extreme does the pipeline export, pipeline B front end does the pipeline entry.

The pipeline A is connected with a plurality of pipelines B, and the pipelines B are arranged in parallel.

The pipeline A and the pipeline B are provided with a mounting plate in a sealing mode, and the mounting plate is at least provided with one fan.

Two fans are arranged on the mounting plate at intervals.

The mixing water pipeline is respectively connected with the spray pipe and the straight-in pipe through the tee joint, the straight-in pipe directly supplies mixing water to the water metering scale bucket, and the spray pipe and the straight-in pipe are respectively provided with a valve.

The utility model adopts the above structure, following beneficial effect can be brought:

(1) this application make full use of mix water purifies dust-containing air, when guaranteeing concrete production mix water, utilizes the grit cement raise dust in the water spray purification pipeline synchronous processing production process again, need not extra water consumption, kills two birds with one stone. (2) With the purifier embedding concrete production flow of this application, do not basically have the influence to the former production process and the structure of stirring station, need not the dismouting clearance.

Description of the drawings:

FIG. 1 is a schematic structural view of the air purification device of the mixing plant of the present invention;

FIG. 2 is a schematic structural view of the air purification device of the mixing plant of the present invention applied to the mixing plant;

in the figure, 1, ventilation pipelines, 101, pipelines A and 102, pipelines B and 2, pipeline inlets, 3, pipeline outlets, 4, a fog dissipation pressure reducing plate, 5, a fan, 6, spraying pipes, 7, a mixing water pipeline, 8, a water metering scale hopper, 9, spraying ports, 10, an airflow guide hole, 11, an airflow guide plate, 12, a dust concentration detector, 13, a protective net, 14, a mounting plate, 15, a three-way joint, 16, a straight-in pipe, 17, a valve, 18, a metering layer, 19, a stirring layer, 20, a cement scale hopper, 21, a sand scale hopper, 22, a powder temporary storage port, 23 and a sand feeding port.

The specific implementation mode is as follows:

in order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

Furthermore, the terms "one end," "the other end," "vertical," "horizontal," "a," "B," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the location of the indicated technical feature.

In the present invention, unless otherwise expressly stated or limited, the terms "provided", "disposed", "connected", and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, in the present invention, although the air is purified by using the mixing water to increase the content of dust (including insoluble substances and soluble substances) in the mixing water, the amount of increase is limited, and various indexes of the mixing water after air purification still satisfy the concrete water standard. In addition, this application designs dust concentration detector at pipeline entry and carries out real-time supervision to dust concentration in order to ensure that the mix water meets the standard, can come the air mass flow of control corresponding dust concentration through adjusting the fan rotational speed according to dust concentration, and final control gets into the dust total amount of mix water, and then ensures that each item index of mix water meets the requirements. In addition, an alarm value can be set for the dust concentration detector, and when the dust detection concentration exceeds a set value due to fault accidental leakage, an alarm prompt can be given. The following table shows the requirements of JGJ63-2006 Water Standard for concrete on various indexes of mixing water, and the mixing water can be treated in reference in practical application.

Item	Prestressed concrete	Reinforced concrete	Plain concrete
				pH value	≥5.0	≥4.5	≥4.5
Insoluble matter (mg/L)	≤2000	≤2000	≤5000
				Soluble matter (mg/L)	≤2000	≤5000	≤10000
Cl ^- (mg/L)	≤500	1000	≤3500
				SO4 ^2- (mg/L)	≤600	≤2000	≤2700
Alkali content (mg/L)	1500	≤1500	≤1500

Water quality requirement of concrete mixing water

As shown in fig. 1-2, the air cleaning device of the mixing plant for producing mixing water by using concrete comprises a ventilating duct 1, one end of the ventilating duct 1 is provided with a duct inlet 2, the other end of the ventilating duct is provided with a duct outlet 3, a fog dispersal pressure reducing plate 4 is arranged at the duct outlet 3, the fog dispersal pressure reducing plate 4 collects the mixing water in a water fog state, then flows out from the outlet 3 of the pipeline, a fan 5 is arranged in the ventilating pipeline 1, the fan 5 sucks air containing dust from the inlet 2 of the pipeline, a spray pipe 6 is arranged in the ventilating pipeline 1 between the fan 5 and the pipeline outlet 3, the spray pipe 6 is communicated with an original mixing water pipeline 7 in the mixing station, the spray pipe 6 sprays mixing water to spray and purify sucked air, the mixing water purified by air spraying flows out of the pipeline outlet 3 and finally flows into a water metering scale bucket 8 in the mixing station. This application make full use of mix water purifies dust-containing air, when guaranteeing concrete production mix water, utilizes the grit cement raise dust in the water spray purification pipeline synchronous processing production process again, need not extra water consumption, kills two birds with one stone. With the purifier embedding concrete production flow of this application, do not basically have the influence to the former production process and the structure of stirring station, need not the dismouting clearance.

A plurality of spraying openings 9 are formed in the spraying pipe 6 at intervals, mixing water is sprayed into a water curtain through the spraying openings 9, and the water curtain purifies sucked air. Spray the purification to the air with the form of cascade, not only purifying effect is good, and can not produce a large amount of atomizing mix water, can effectively prevent atomizing mix water along with the air current inflow environment at cooperation little fog pressure-reducing plate 4.

A plurality of airflow guide holes 10 are arranged at intervals on the side wall of one end of the ventilating duct 1 close to the duct outlet 3. The air flow is guided to be diffused towards the peripheral direction, so that the air flow (air pressure) is prevented from directly rushing towards the water metering scale bucket 8 to influence the metering precision of the water metering scale bucket 8.

The fog dissipation and pressure reduction plate 4 is designed into a conical structure, and a space is reserved between the fog dissipation and pressure reduction plate 4 and the ventilation pipeline 1. Improve fog dispersal decompression effect, ensure simultaneously that liquid mix water is in time discharged.

And an airflow guide plate 11 is arranged at the bottom of the fog dispersal pressure reduction plate 4. Further ensuring that the air flow does not flow directly to the water-measuring scale bucket 8.

And a dust concentration detector 12 is arranged at the pipeline inlet 2. The dust concentration in the air is monitored, and the mixing water is ensured to still reach the use standard after the air is purified. In addition, an alarm value can be set, and when the dust detection concentration exceeds a set value due to fault accidental leakage, an alarm can be given.

A protective net 13 is arranged at one end of the ventilating duct 1 close to the duct inlet 2. Large pieces of foreign matter (such as paper pieces, cotton yarn, maintenance tools, plastic bags) are prevented from entering the ventilation duct 1.

The pipeline outlet 3 is arranged above the water metering scale bucket 8. The mixing water flows directly into the water metering scale bucket 8 by means of gravity.

The ventilation pipeline 1 comprises a vertically arranged pipeline A101, the pipeline A101 is at least connected with a pipeline B102, the lower end of the pipeline A101 is a pipeline outlet 3, and the front end of the pipeline B102 is a pipeline inlet 2. The ventilation pipeline 1 is designed into a sectional structure, which is beneficial to manufacture, maintenance and installation.

The pipeline a101 is connected with a plurality of pipelines B102, and the plurality of pipelines B102 are arranged in parallel. The design of a plurality of pipelines B102 can simultaneously carry out air suction and purification on a plurality of positions, especially can simultaneously carry out air purification on a plurality of dust generation positions, and then improve air purification efficiency and purification effect.

A mounting plate 14 is arranged between the pipeline A101 and the pipeline B102 in a sealing mode, and at least one fan 5 is arranged on the mounting plate 14. The fan 4 is convenient to install, and the installation efficiency and the installation reliability of the fan 4 are improved.

Two fans 5 are arranged on the mounting plate 14 at intervals. Use two fans more in general practical application, be favorable to improving air purification efficiency, in addition when one of them fan damages the back, another fan still can work, avoids shutting down the maintenance for a long time.

The mixing water pipeline 7 is respectively connected with the spraying pipe 6 and the straight-in pipe 16 through the three-way joint 15, the straight-in pipe 16 directly supplies mixing water to the water metering scale bucket 8, and valves 17 are respectively arranged on the spraying pipe 6 and the straight-in pipe 16. The structure is convenient to select and use between the original structure and the existing structure.

This application stirring station air purification device's working process:

install the air purification device of this application on the stirring station, the stirring station is equipped with cement scale bucket 20, grit on 18 including measurement layer 18 and stirring layer 19, and the scale bucket 21 and the water measurement scale bucket 8 are kept in storage to cement scale bucket 20, grit, and cement scale bucket 20 is equipped with powder dog-house 22, is equipped with grit dog-house 23 on the grit scale bucket 21 of keeping in. The mixing plant during operation, during every one jar of concrete that stirs, the measurement or the transport of various raw materialss go on in step, start fan 5 this moment, the air that will contain the dust under fan 5's effect is inhaled from pipeline entry 2, flow along

air pipe

1, 6 switches on of shower, the mouth of spraying 9 forms the plane water curtain with the water blowout of mix, the air that contains the dust that passes through purifies, for preventing in the water curtain that tiny drop of water from drifting along with the air current and wind pressure influences the measurement accuracy that water measurement balance is flat, collect water smoke through fog dissipation and pressure reduction board 4, derive the air current to all around through air current guiding hole and air current deflector. The mixing water flows out of the pipeline outlet 3 and enters the water metering scale bucket 8, and then air purification treatment is completed. In the air purification process, the dust concentration in the air is monitored in real time according to the dust concentration detector 12, the air flow of the corresponding dust concentration is controlled by controlling the rotating speed of the fan, and finally the total amount of the dust entering the mixing water is controlled, so that the mixing water entering the mixer meets the requirements of concrete water standards.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. Utilize mixing station air purification device of concrete production mix water, its characterized in that includes air pipe, air pipe one end is established to the pipeline entry, and the other end is established to the pipeline export, the pipeline exit is equipped with fog dispersal decompression board, be equipped with the fan in the air pipe, the air that the fan will contain the dust inhales from the pipeline entry, be equipped with the shower in the air pipe between fan and the pipeline export, shower and the mixing of mixing station in original water pipeline intercommunication, the shower sprays the mix water blowout to the inspiratory air and purifies, and the mix water after the air spray purification flows from the pipeline export, and finally flows in the water metering bucket in the mixing station.

2. The air purification device for a mixing plant using concrete for mixing water production according to claim 1, wherein a plurality of spraying ports are arranged on the spraying pipe at intervals, the spraying ports spray mixing water into a water curtain, and the water curtain purifies sucked air.

3. The air purification device for a mixing station for producing mixing water by using concrete as claimed in claim 2, wherein a plurality of airflow guide holes are formed at intervals on the side wall of one end of the ventilation pipeline close to the outlet of the pipeline.

4. The air purification device for the mixing station for producing mixing water by using concrete as claimed in claim 3, wherein the fog dispersal pressure reduction plate is designed into a conical structure, a space is reserved between the fog dispersal pressure reduction plate and the ventilation pipeline, and an airflow guide plate is arranged at the bottom of the fog dispersal pressure reduction plate.

5. A mixing station air cleaning apparatus for mixing water produced from concrete according to claim 1 or 4, characterised in that a dust concentration detector is provided at the inlet of the pipeline.

6. The mixing station air purification device using concrete for mixing water production as claimed in claim 5, wherein a protective net is arranged at one end of the ventilating duct close to the inlet of the duct.

7. A mixing station air cleaning plant for mixing water with concrete production according to claim 6, characterised in that the pipe outlet is arranged above the water measuring scale hopper.

8. The air purification device for a mixing station using concrete for mixing water production according to claim 1 or 7, wherein the ventilation duct comprises a vertically arranged duct A, the duct A is connected with at least one duct B, the lower end of the duct A is the duct outlet, and the front end of the duct B is the duct inlet.

9. The air cleaning device for a mixing station for producing mixing water by using concrete as claimed in claim 8, wherein a plurality of pipelines B are connected to the pipeline A, a plurality of pipelines B are arranged in parallel, a mounting plate is arranged between the pipelines A and B in a sealing manner, and at least one fan is arranged on the mounting plate.

10. A mixing plant air cleaning plant for mixing water with concrete production according to claim 9, characterised in that the mixing water line is connected via a tee joint to a spray pipe and a straight pipe, respectively, the straight pipe directly supplying mixing water to the water metering scale hopper, and the spray pipe and the straight pipe are provided with valves, respectively.