CN212523840U

CN212523840U - Real-time detection urea solution stirring device

Info

Publication number: CN212523840U
Application number: CN202021162329.5U
Authority: CN
Inventors: 张竞; 刘鼎; 汤晓辉; 张书毓; 何冉
Original assignee: Henan Zhongyuan Huagong Laser Engineering Co Ltd
Current assignee: Henan Zhongyuan Huagong Laser Engineering Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-02-12
Anticipated expiration: 2030-06-19

Abstract

The utility model belongs to the field of urea liquid production, in particular to a real-time detection urea liquid stirring device, the top of an inner container of an interlayer steam heating stirring tank is provided with a feed inlet, a breather valve and a manhole, the bottom is provided with a discharge outlet, the upper part of the side wall is provided with a return port, the inner part is coaxially provided with a stirring shaft, the upper part of the stirring shaft is fixedly connected with a plurality of inclined paddle stirring blades in a staggered way, the lower part is fixedly connected with a frame type stirring blade, the side wall of the inner container is, perspective observation window and online densimeter, the material jar is inhaled in the connection of feed inlet top, and the negative pressure pipe that inhales the material jar is connected to the vacuum pump, and feed inlet one side is connected with the inlet tube of installing flow control valve, and the discharge gate lower extreme is connected with the discharging pipe, and the discharging pipe lower extreme is the slag tap, and discharging pipe one side is connected to the bleeder pump, and the drain pipe end connection finished product pipe of bleeder pump, the drain pipe upside is connected with the return pipe, and the return pipe upper end is connected to. This agitator tank can prevent that tank bottoms material deposit from improving the dissolution mixing rate, and on-line measuring is in real time with accuse solution concentration.

Description

Real-time detection urea solution stirring device

Technical Field

The utility model belongs to urea liquid production field, concretely relates to real-time detection urea liquid agitating unit.

Background

The urea liquid for the vehicle is colorless, transparent and clear liquid, the concentration of the urea liquid is 31.8-33.2%, and the urea liquid is used in a selective catalytic reduction system of the tail gas of the diesel vehicle, can catalyze and reduce oxynitride in the tail gas of the vehicle into harmless nitrogen and water, and has great significance for the environmental protection emission of the tail gas of the diesel vehicles such as heavy trucks, passenger cars and the like. The preparation raw materials of automobile-used urea liquid are urea crystal and deionized water, its concentration generally requires to be accurate to 32.5%, because the concentration of urea liquid has decided the quality of urea liquid, the stirring mode is single in traditional urea liquid preparation method agitator tank, the dissolving efficiency of urea crystal in the deionized water is low, and the tank bottom appears the urea raw materials easily and piles up or glue, seriously influence urea liquid finished product quality, need carry out artifical sample detection concentration constantly in the urea liquid production process, waste time and energy, concentration control is inaccurate, urea liquid quality is unstable.

SUMMERY OF THE UTILITY MODEL

In order to the above situation, the utility model provides a real-time detection urea liquid agitating unit, urea liquid concentration in the real-time detection agitator tank of can online greatly improves the preparation efficiency of urea liquid, and urea liquid concentration is also more accurate to the accuse.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a real-time detection urea solution stirring device comprises a stirring tank, wherein the stirring tank is a double-layer interlayer tank, an interlayer of the stirring tank is used for steam heating, a steam inlet and a steam outlet are formed in the side wall of the interlayer, a drain outlet is formed in the bottom of the stirring tank and is used for discharging impurities such as steam condensate water and scale, a feed inlet, a breather valve and a manhole are formed in the top of an inner container of the stirring tank, the manhole is mainly used for the inspection and the use of the inside of the tank body by a user and can also be used for manual feeding, a discharge outlet is formed in the bottom of the stirring tank, a material return port is formed in the upper portion of the side wall of the inner container, a stirring shaft is coaxially arranged in the inner container, a plurality of inclined paddle stirring blades are fixedly connected to the upper portion of the stirring shaft in a staggered mode, a frame type stirring blade is fixedly connected to the lower portion of the stirring, the negative pressure pipe is connected to the vacuum pump, inhales the feed tank evacuation and is negative pressure state and draws urea crystal material or high concentration urea solution through the material loading pipe, and feed inlet one side is connected with the inlet tube, installs flow control valve on the inlet tube for the ration control deionized water is intake, the discharge gate lower extreme is connected with the discharging pipe, and the discharging pipe lower extreme is the scum outlet, and discharging pipe one side is connected to the feed liquor pipe of discharge pump, and the drain pipe end connection finished product pipe of discharge pump, the drain pipe upside are connected with the material returning pipe, and the material returning pipe upper end is connected to the material returning mouth, is equipped with material returning valve and finished product valve on material returning pipe and the finished product pipe respectively, is equipped with material loading valve.

Preferably, the tank bottom of agitator tank leaks hopper-shaped for the toper, and the supporting leg has been welded to the tank bottom below, and frame stirring leaf lower edge parallels with tank bottoms inner wall, and frame stirring leaf lower edge cooperation rigid coupling has long wool top brush, and the brush hair of long wool top brush constantly scrubs the tank bottoms simultaneously with tank bottoms inner wall sliding contact in the stirring process, prevents tank bottoms deposit or glues glutinous, improves the dissolution rate.

Preferably, the on-line densimeter is an elbow pipe insertion type digital display on-line densimeter, is inserted into the tank body, monitors the liquid concentration in the tank in real time, and displays numerical values which can be read visually.

Preferably, the perspective observation window is made of high-temperature-resistant toughened glass and is used for observing the stirring and dissolving conditions in the tank, the transparency of the solution and the existence of precipitates at the bottom of the tank.

Preferably, the liquid level observation pipe is a direct-reading glass tube liquid level meter, and the glass tube liquid level meter is communicated and installed on the side wall of the tank body, so that the liquid level in the tank can be conveniently monitored and read.

The utility model discloses still including other subassemblies that can make its normal use, be the conventional technical means in this field, in addition, the utility model discloses in add not limited device or subassembly, for example: the breather valve, the vacuum pump, the speed reducer, the manhole, various pipeline valves, pipeline instruments and the like are all arranged conventionally in the field.

The utility model has the advantages as follows:

according to the real-time detection urea solution stirring device, a stirrer in a stirring tank adopts a mixing three-dimensional stirring mode of staggered inclined paddle stirring blades and frame stirring blades, and combines brushing at the bottom of a long wool top brush tank and pumping return circulation, so that urea materials are well prevented from being deposited and bonded, and the solution stirring, dissolving and mixing speed is improved; in addition, adopt jar body online concentration detection device, look over in the visual jar of combination and the liquid level detection structure, real-time supervision regulation and control solution concentration, liquid level and the dissolution condition, accurate 32.5% standard concentration of accuse urea liquid ensures urea liquid finished product quality, avoids relapseing artifical concentration that detects, and the material resources of using manpower sparingly reduce intensity of labour, promote production efficiency.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a device for detecting stirring of urea solution in real time.

Detailed Description

The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples

As shown in figure 1, a real-time detection urea solution stirring device comprises a stirring tank 1, wherein the stirring tank 1 is a double-layer interlayer tank, an interlayer 2 of the stirring tank is used for steam heating, a steam inlet 3 and a steam outlet 4 are formed in the side wall of the interlayer 2, a discharge hole 5 is formed in the bottom of the interlayer 2 and is used for discharging impurities such as steam condensate water, water scales and the like, a feed inlet 7, a breather valve 8 and a manhole 9 are formed in the top of an inner container 6 of the stirring tank, the manhole is mainly used for overhauling and maintaining the inner part of the tank body and can also be used for manual feeding, a discharge hole 10 is formed in the bottom of the inner container, a return hole 11 is formed in the upper part of the side wall of the inner container, a stirring shaft 12 is coaxially arranged in the inner container, a plurality of inclined paddle stirring blades 13 are fixedly connected on the upper part of the stirring shaft in a staggered manner, a discharging pipe of a material suction tank 20 is connected above the feeding port, a feeding pipe and a negative pressure pipe are connected to the top of the material suction tank, the negative pressure pipe is connected to a vacuum pump 21, the material suction tank is vacuumized to be in a negative pressure state, urea crystal materials or high-concentration urea solution are sucked through the feeding pipe, a water inlet pipe is connected to one side of the feeding port, a flow control valve 22 is installed on the water inlet pipe, used for quantitatively controlling the deionized water inlet, the lower end of the discharge hole is connected with a discharge pipe, the lower end of the discharge pipe is a slag discharge hole, the discharging pipe is connected to the liquid inlet pipe of the discharging pump 23, the end part of the liquid outlet pipe of the discharging pump is connected with a finished product pipe, the upper side of the liquid outlet pipe is connected with a material returning pipe, the upper end of the material returning pipe is connected to a material returning opening, the material returning pipe and the finished product pipe are respectively provided with a material returning valve 24 and a finished product valve 25, the material feeding pipe and the material discharging pipe are respectively provided with a material feeding valve 26 and a material discharging valve 27, and the negative pressure pipe is provided with a gate valve 28.

The tank bottoms of agitator tank 1 leaks hopper-shaped for the toper, and the supporting leg has been welded to the tank bottom below, and frame stirring leaf lower edge parallels with tank bottoms inner wall, and frame stirring leaf lower edge cooperation rigid coupling has long wool top brush 29, and the brush hair of long wool top brush constantly scrubs the tank bottoms simultaneously with tank bottoms inner wall sliding contact in the stirring process, prevents tank bottoms deposit or glues glutinous, improves the dissolution rate.

The online densimeter 19 adopts an XCMD-B type bent pipe plug-in digital display online densimeter, is inserted into the tank body and monitors the concentration of liquid in the tank in real time.

The perspective observation window 18 is made of high-temperature resistant toughened glass and is used for observing the stirring and dissolving conditions in the tank, the transparency of the solution and the existence of sediments at the bottom of the tank.

The liquid level observation pipe 17 is a direct-reading glass tube liquid level meter which is communicated and installed on the side wall of the tank body, and the liquid level in the tank body can be conveniently monitored and read.

The working principle of the utility model is as follows:

when the real-time detection urea solution stirring device works, a material suction tank 20 is in a negative pressure state under the action of a vacuum pump 21, urea crystal materials or proportioning materials are sucked into the material suction tank from a feeding pipe through a feeding valve 26 and then enter an inner container 6 of a stirring tank 1 through a discharging pipe, solvent deionized water is quantitatively supplied into the inner container from a water inlet pipe through a flow control valve 22, an interlayer 2 is opened for steam heating, the stirring in the tank and a tank bottom discharging pump are simultaneously started to start dissolving operation, a finished product valve 25 is selectively closed at the moment, a material returning valve 24 is opened, so that the solution at the tank bottom continuously returns to the top of the tank through a material returning port 11, and the three-dimensional mixing and boiling of the solution are assisted to realize so as to accelerate the dissolution regulation rate; in the dissolving process, the online concentration meter 19 detects and displays the concentration of the solution in the tank in real time, an operator can monitor the concentration of the solution at any time and control and accurately adjust the concentration of the urea solution in time until the concentration of the urea solution reaches the standard, at the moment, the material returning valve 24 is closed, the finished product valve 25 is opened, the finished product urea solution is output from the finished product pipe, and the stirring and blending operation is finished.

The technical solution of the present invention is not limited to the above-mentioned specific embodiments, and many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. The utility model provides a real-time detection urea solution agitating unit, includes the agitator tank, its characterized in that: the stirring tank is a double-layer interlayer tank, an interlayer of the stirring tank is used for steam heating, a steam inlet and a steam outlet are formed in the side wall of the interlayer, a drain outlet is formed in the bottom of the stirring tank, a feed inlet, a breather valve and a manhole are formed in the top of an inner container of the stirring tank, a discharge outlet is formed in the bottom of the inner container, a material return port is formed in the upper portion of the side wall, a stirring shaft is coaxially arranged in the inner container, a plurality of inclined-paddle stirring blades are fixedly connected to the upper portion of the stirring shaft in a staggered mode, frame-type stirring blades are fixedly connected to the lower portion of the stirring shaft, the top end of the stirring shaft is connected with a stirring motor through a speed reducer, a liquid level observation pipe, a perspective observation window and an online concentration meter are mounted on the side wall of the inner, the discharging pipe lower extreme is the scum outlet, and discharging pipe one side is connected to the feed liquor pipe of discharge pump, and the drain pipe end connection finished product pipe of discharge pump, drain pipe upside are connected with the return pipe, and the return pipe upper end is connected to the material returning mouth, is equipped with return valve and finished product valve on return pipe and the finished product pipe respectively, is equipped with material loading valve and unloading valve on material loading pipe and the unloading pipe respectively.

2. The real-time detection urea solution stirring device according to claim 1, characterized in that: the tank bottom of agitator tank leaks hopper-shaped for the toper, and the supporting leg has been welded to the tank bottom below, and frame stirring leaf lower edge parallels with the tank bottoms inner wall, and frame stirring leaf lower edge cooperation rigid coupling has long wool top brush, the brush hair and the tank bottoms inner wall sliding contact of long wool top brush.

3. The real-time detection urea solution stirring device according to claim 1, characterized in that: the on-line densimeter is a bent pipe inserted digital display on-line densimeter.

4. The real-time detection urea solution stirring device according to claim 1, characterized in that: the perspective observation window is made of high-temperature resistant toughened glass.

5. The real-time detection urea solution stirring device according to claim 1, characterized in that: the liquid level observation tube is a direct-reading glass tube liquid level meter.