CN218834404U

CN218834404U - System for quantitatively adding chelating agent for treating fly ash

Info

Publication number: CN218834404U
Application number: CN202320176870.9U
Authority: CN
Inventors: 乔一凡; 王敏
Original assignee: Anji Wangneng Regeneration Resource Utilization Co ltd
Current assignee: Anji Wangneng Regeneration Resource Utilization Co ltd
Priority date: 2023-01-31
Filing date: 2023-01-31
Publication date: 2023-04-11
Anticipated expiration: 2033-01-31

Abstract

The utility model discloses a system for quantitatively adding chelating agent for treating fly ash, which comprises a chelating agent storage tank (1), wherein a metering pump (2) is arranged at the discharge port of the chelating agent storage tank (1), a solution batching tank (3) is connected below the discharge port of the chelating agent storage tank (1) through a pipeline, a solvent supply pipe (4) is also connected above the solution batching tank (3), and a flow control valve (5) is arranged on the solvent supply pipe (4); a rapid stirring component (6) is arranged in the solution batching tank (3); the middle part of the top end of the solution batching tank (3) is provided with a chelating agent inlet (7), and two sides of the chelating agent inlet (7) are provided with solvent spraying nozzles (8) which are distributed in an inclined mode. The utility model has the characteristics of can effectively improve stirring efficiency and guarantee the precision.

Description

System for quantitatively adding chelating agent for treating fly ash

Technical Field

The utility model relates to a chelating agent adds equipment, especially a flying dust is handled and is used chelating agent ration addition system.

Background

The garbage incineration technology can realize the reclamation, reduction and harmlessness of the garbage; in the process of burning operation of a waste incineration power plant, a large amount of fly ash can be generated, heavy metals contained in the waste incineration fly ash can cause damage to landfill environment, and the waste incineration fly ash can enter a municipal solid waste landfill area for landfill after being subjected to stabilization and solidification treatment to reach relevant standards. At present, two modes of cement solidification and chelating agent solidification stabilization are mainly adopted for treating fly ash, a chelating agent is a dimethylamine organic sulfur chelating agent generally, the chelating agent is often manually added into a solvent for stirring by workers during adding, the stirring efficiency is low, the stirring effect is not ideal, the adding proportion between the chelating agent and the solvent is also easily influenced by manpower, and the precision is difficult to guarantee. Therefore, the prior art has the problems of low stirring efficiency and difficult guarantee of precision.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fly ash is handled with chelant ration addition system. The utility model has the characteristics of can effectively improve stirring efficiency and guarantee the precision.

The technical scheme of the utility model: the system for quantitatively adding the chelating agent for treating the fly ash comprises a chelating agent storage tank, wherein a metering pump is arranged at a discharge port of the chelating agent storage tank, a solution batching tank is connected below the discharge port of the chelating agent storage tank through a pipeline, a solvent supply pipe is also connected above the solution batching tank, and a flow control valve is arranged on the solvent supply pipe; a rapid stirring component is arranged in the solution batching tank; the middle part of the top end of the solution batching tank is provided with a chelating agent inlet, and two sides of the chelating agent inlet are provided with solvent spraying nozzles which are distributed in an inclined mode.

In the system for quantitatively adding the chelating agent for treating the fly ash, the rapid stirring assembly comprises a horizontal stirring shaft positioned in the solution batching tank, transmission bevel gears are arranged at two ends of the horizontal stirring shaft, and a group of stirring paddles which are distributed side by side are arranged on the horizontal stirring shaft; the upper side and the lower side of the transmission bevel gear are respectively provided with a driving bevel gear and a driven bevel gear, the driving bevel gear is provided with a driving shaft, and the upper end of the driving shaft is provided with a driving motor; a driven shaft is arranged on the driven bevel gear; and the driving shaft and the driven shaft are both provided with stirring blades.

In the quantitative adding system of the chelating agent for treating the fly ash, the stirring ring is horizontally arranged in the middle of the stirring shaft, and the outer wall surface of the stirring ring is provided with the stirring sheet.

In the chelating agent quantitative adding system for treating fly ash, a conical discharge hole is arranged below the solution batching tank.

Compared with the prior art, the utility model discloses constitute by chelating agent holding vessel, measuring pump, solution batching jar, solvent supply pipe and flow control valve, through mutually supporting between measuring pump and the flow control valve to can realize that the ration of chelating agent and solvent adds, guarantee the interpolation precision of solute and solvent, and then can effectively improve the ratio precision. Meanwhile, the utility model discloses a set up the rapid mixing subassembly in solution batching jar to can be very big improvement stirring effect, improve stirring efficiency, utilize mutually supporting between the bevel gear to realize the multistage transmission, only need the one-level power supply just can realize the stirring of upper, middle and lower region, stirring speed is fast, and stirring effect is good. To sum up, the utility model has the characteristics of can effectively improve stirring efficiency and guarantee the precision.

Drawings

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

The labels in the figures are: 1-chelating agent storage tank, 2-metering pump, 3-solution dosing tank, 4-solvent supply pipe, 5-flow control valve, 6-rapid stirring component, 7-chelating agent inlet, 8-solvent spray nozzle, 601-horizontal stirring shaft, 602-transmission bevel gear, 603-stirring paddle, 604-driving bevel gear, 605-driven bevel gear, 606-driving shaft, 607-driving motor, 608-driven shaft, 609-stirring blade, 610-stirring ring, 611-stirring blade, and 612-conical discharge port.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. The system for quantitatively adding the chelating agent for treating the fly ash is shown in figure 1, and comprises a chelating agent storage tank 1, wherein a metering pump 2 is arranged at a discharge port of the chelating agent storage tank 1, a solution batching tank 3 is connected below the discharge port of the chelating agent storage tank 1 through a pipeline, a solvent supply pipe 4 is also connected above the solution batching tank 3, and a flow control valve 5 is arranged on the solvent supply pipe 4; a rapid stirring assembly 6 is arranged in the solution batching tank 3; the middle part of the top end of the solution batching tank 3 is provided with a chelating agent inlet 7, and two sides of the chelating agent inlet 7 are provided with solvent spraying nozzles 8 which are distributed in an inclined mode.

The rapid stirring assembly 6 comprises a horizontal stirring shaft 601 positioned in the solution batching tank 3, transmission bevel gears 602 are arranged at two ends of the horizontal stirring shaft 601, and a group of stirring paddles 603 distributed side by side are arranged on the horizontal stirring shaft 601; a driving bevel gear 604 and a driven bevel gear 605 are respectively arranged at the upper side and the lower side of the transmission bevel gear 602, a driving shaft 606 is arranged on the driving bevel gear 604, and a driving motor 607 is arranged at the upper end of the driving shaft 606; a driven shaft 608 is arranged on the driven bevel gear 605; stirring blades 609 are arranged on the driving shaft 606 and the driven shaft 608.

The middle part of the horizontal stirring shaft 601 is provided with a stirring ring 610, and the outer wall surface of the stirring ring 610 is provided with stirring blades 611.

A conical discharge hole 612 is arranged below the solution batching tank 3.

Preferably, the chelating agent storage tank comprises a tank body, a jacket is arranged outside the tank body, and a heat-insulating layer is arranged in the jacket; thereby the temperature in the tank body can be kept within a certain range, and the chelating agent is ensured to have good storage temperature.

The metering pump and the flow control valve are both connected with a controller, and the controller controls the metering pump and the flow control valve to carry out corresponding feeding actions according to the required addition amount.

The utility model discloses a process is added to ration: and (3) controlling the corresponding metering pump and flow control valve to act by the controller according to the amount of the chelating agent and the solvent required to be added, feeding the chelating agent and the solvent into the solution batching tank to be stirred and mixed, and after uniform stirring, enabling the chelating agent solution to flow out of the conical discharge port to the corresponding fly ash stabilizing treatment device for use.

The inclination direction of the solvent spray nozzle is that the bottom of the solvent spray nozzle inclines downwards towards the direction of the chelating agent inlet.

When the solvent flows into the solution batching tank, the solvent is sprayed to the falling direction of the chelating agent through the solvent spraying nozzles which are distributed obliquely, so that the solvent can be premixed with the chelating agent; meanwhile, two solvent streams are impacted, so that the mixing effect can be further improved.

The diameter of the stirring ring is larger than that of the stirring paddle.

The driven shaft is fixed on the inner bottom of the solution batching tank, and a bearing is arranged on the inner bottom.

The stirring process of the rapid stirring assembly is as follows: the driving motor works to drive the driving shaft and the driving bevel gear to rotate, the driving bevel gear rotates to drive the transmission bevel gear to rotate, the transmission bevel gear rotates to drive the horizontal stirring shaft to rotate and the driven bevel gear to rotate, and the driven bevel gear rotates to drive the driven shaft to rotate; driving shaft, driven shaft and level can drive corresponding stirring vane, stirring rake and stirring ring and stir to the rotation of (mixing) shaft, carry out multi-level stirring about going up, guarantee the quick and even of stirring.

Claims

1. The system for quantitatively adding the chelating agent for treating the fly ash is characterized in that: the device comprises a chelating agent storage tank (1), wherein a metering pump (2) is arranged at a discharge port of the chelating agent storage tank (1), a solution batching tank (3) is connected below the discharge port of the chelating agent storage tank (1) through a pipeline, a solvent supply pipe (4) is also connected above the solution batching tank (3), and a flow control valve (5) is arranged on the solvent supply pipe (4); a rapid stirring component (6) is arranged in the solution batching tank (3); the middle part of the top end of the solution batching tank (3) is provided with a chelating agent inlet (7), and two sides of the chelating agent inlet (7) are provided with solvent spraying nozzles (8) which are distributed in an inclined mode.

2. A chelant dosing system for fly ash processing according to claim 1, characterized in that: the rapid stirring assembly (6) comprises a horizontal stirring shaft (601) positioned in the solution batching tank (3), two ends of the horizontal stirring shaft (601) are provided with transmission bevel gears (602), and the horizontal stirring shaft (601) is provided with a group of stirring paddles (603) which are distributed side by side; a driving bevel gear (604) and a driven bevel gear (605) are respectively arranged on the upper side and the lower side of the transmission bevel gear (602), a driving shaft (606) is arranged on the driving bevel gear (604), and a driving motor (607) is arranged at the upper end of the driving shaft (606); a driven shaft (608) is arranged on the driven bevel gear (605); and stirring blades (609) are arranged on the driving shaft (606) and the driven shaft (608).

3. A chelant dosing system for fly ash processing according to claim 2, characterized in that: the middle part of the horizontal stirring shaft (601) is provided with a stirring ring (610), and the outer wall surface of the stirring ring (610) is provided with stirring blades (611).

4. A chelant dosing system for fly ash processing according to claim 2, characterized in that: a conical discharge hole (612) is arranged below the solution batching tank (3).