Slurry tank convenient to clean

Abstract

The utility model belongs to the technical field of aluminum oxide production equipment, and particularly relates to a slurry tank convenient to clean, which comprises a first tank body, a second tank body and a discharging and cleaning system, the second tank body comprises a first section and a second section which are detachably connected from top to bottom, the first section and the second section jointly form an inverted conical tank body, the top of the inverted conical tank body is connected with the bottom of the first tank body, and the first tank body and the second tank body jointly form a slurry tank with a conical bottom. The second tank body is designed to be of a conical structure with the bottom capable of being opened, so that scabbing is not prone to occurring, and meanwhile bottom sediment can be conveniently discharged during cleaning. And moreover, the cleaning feeding pipe is additionally arranged at the discharging hole, so that gas can be introduced into the bottom of the tank during cleaning, more disturbance can be brought while heating in the tank is realized, and a better cleaning effect can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of alumina production equipment, specifically relates to a slurry tank convenient to clean. BACKGROUND

[0002] The raw slurry storage tank is an important equipment for storing raw slurry in the alumina production process, and is used for storing raw slurry. The raw slurry contains bauxite, lime, soda ash, anthracite and other components, and the bauxite usually contains a large amount of impurities such as titanium dioxide, iron oxide and silicon oxide. These impurities are easy to react with soda solution to produce water-insoluble compounds, which are attached to the inner wall of the raw slurry storage tank to form scabs. The adverse effects of scabs include: 1. It will reduce the effective volume of the tank and affect the running stability of the equipment, thereby reducing the production efficiency; 2. The scabs may contain unreacted bauxite components or other impurities, which may enter the alumina product and affect the product quality; 3. The long-term existence of scabs will cause corrosion and wear of the tank wall, shortening the service life of the equipment.

[0003] The raw slurry storage tank usually includes a tank body provided with an inlet and outlet, and a stirring device is usually arranged in the tank body. For the raw slurry storage tank with such structure, the commonly used scab cleaning methods include physical cleaning and chemical cleaning methods. The physical cleaning method includes mechanical cleaning, water cleaning and the like, which has the disadvantages of time-consuming and labor-consuming, low efficiency, and difficult to completely discharge the cleaning liquid due to the dead angle in the tank. The chemical cleaning method usually includes pickling and alkaline cleaning, which has the disadvantages of high cost due to the consumption of a large amount of acid or alkali, corrosion of the tank body, influence on the service life, and difficult to completely discharge the cleaning liquid due to the dead angle in the tank. CONTENT OF THE UTILITY MODEL

[0004] In view of the problems in the prior art, the utility model provides a slurry tank convenient to clean, and the utility model specifically includes the following contents:

[0005] The utility model discloses a slurry tank convenient to clean, including first tank body, second tank body and discharge and cleaning system, the first tank body is the cylinder structure of top closed, bottom open, is provided with the feed inlet on the top of first tank body, the second tank body includes the first section and the second section of detachable connection from top to bottom, the first section and the second section jointly constitute an inverted conical tank body, the top of inverted conical tank body is connected with the bottom of first tank body, and the first tank body, second tank body jointly constitute a slurry tank with the bottom of conical body, the lateral wall of second tank body first section is provided with the reserved mouth, and the reserved mouth is circumscribed first pipeline, and the discharge and cleaning system includes discharge pipe and cleaning feeding pipe, and discharge pipe, cleaning feeding pipe are connected with first pipeline through tee joint. The ratio of the height of the second section of the second tank to the total height of the second tank is 1:(5-15). If the height of the second section is too high, the weight of the second section during production and cleaning will be too large, causing the load at the connection between the first section and the second section to be too large, which can easily cause the connection to fall off and be damaged, which is not conducive to production safety and long-term use of the equipment. If the height of the second section is too low, the opening at the connection between the first section and the second section will be too small, which is not conducive to completely discharging the material later.

[0006] When cleaning is needed, the stirring is started, a certain amount of alkali red mud and water are added from the feed inlet, high-temperature steam is then added from the bottom to the slurry tank through the cleaning feeding pipe to play a stirring role while heating, after a period of time of steam is passed, high-pressure gas is continuously passed into the slurry tank through the cleaning feeding pipe to strengthen the stirring, after a period of high-temperature stirring, most of the deposited scabs in the slurry tank can be dissolved in the alkali red mud, the alkali red mud with dissolved scabs is then discharged from the discharge pipe or the cleaning feeding pipe, and finally the connection between the first section and the second section of the second tank is opened to completely discharge the alkali red mud at the conical tank bottom. In this way, one cleaning work is completed.

[0007] Further, the first section and the second section of the second tank are connected through a plurality of bolts.

[0008] Further, a sealing device is arranged at the connection between the first section and the second section of the second tank, which can be a sealing ring, a sealing gasket or other sealing devices arranged at the connection.

[0009] Further, a rotating connection device is arranged on the outer wall at the connection between the first section and the second section of the second tank, which can be a pin shaft, a hinge or the like, and the rotating connection device can be used to open the second section from the bottom of the first section after the connecting bolts between the first section and the second section are removed, so that the operation safety can be ensured and the subsequent installation is facilitated.

[0010] Further, control valves are respectively arranged on the first pipeline, the discharge pipe and the cleaning feeding pipe.

[0011] Further, the side wall of the first section of the second tank body is further provided with an observation window, and a transparent plate is sealed and covered on the observation window, which can be used for observing the scabbing condition and cleaning condition of the tank bottom.

[0012] The present application has the following advantages:

[0013] The pulp tank disclosed by the present application comprises a first tank body, a second tank body, and a discharging and cleaning system. When the pulp tank disclosed by the present application is used normally, the pulp is fed from the feeding port and discharged from the discharging pipe. When cleaning is needed, a certain amount of alkali red mud and water are added from the feeding port, and then high-temperature steam is added from the cleaning feeding pipe to the pulp tank from bottom to top, which plays a stirring role while heating. After the steam is passed for a period of time, high-pressure gas is continuously passed into the pulp tank from the cleaning feeding pipe to strengthen the stirring. After high-temperature stirring for a period of time, most of the deposited scabs in the pulp tank can be dissolved in the alkali red mud. Then, the alkali red mud with dissolved scabs is discharged from the discharging pipe or the cleaning feeding pipe. Finally, the connection between the first section and the second section of the second tank body is opened, so that the alkali red mud in the conical tank bottom is completely discharged. The second tank body is designed as a conical structure with an open bottom in the present application, which is not easy to scab and is also convenient for discharging the bottom deposits during cleaning. Moreover, the cleaning feeding pipe is additionally arranged at the discharging port, so that gas can be passed into the tank bottom during cleaning, which can realize heating in the tank and bring more disturbance. In this way, the tank body is not damaged, and better cleaning effect can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Fig. 1 is a structural schematic view of the pulp tank disclosed by the present application. DETAILED DESCRIPTION

[0015] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments shown below do not limit the content of the present application recited in the claims in any way. In addition, the entire content of the embodiments represented below is not limited to the solutions necessary for the present application recited in the claims.

[0016] Reference is made to the accompanying drawings Figure 1The utility model discloses a slurry tank convenient to clean, including first tank body 1, second tank body and discharge and cleaning system, first tank body 1 is the closed top, bottom open cylinder structure, and the top of first tank body 1 is provided with the feed inlet, the second tank body includes detachable connection's first section 2 and second section 3 from top to bottom, and first section 2 and second section 3 jointly constitute an inverted conical tank body, and the top of inverted conical tank body is connected with the bottom of first tank body 1, and first tank body 1, second tank body jointly constitute a slurry tank with conical bottom, the lateral wall of second tank body first section 2 is provided with the reserved mouth, and the reserved mouth is circumscribed first pipeline 4, and the discharge and cleaning system includes discharge pipe 5 and cleaning and feeding pipe 6, and discharge pipe 5, cleaning and feeding pipe 6 are connected through tee with first pipeline 4.

[0017] The utility model discloses a slurry tank convenient to clean, including first tank body 1, second tank body and discharge and cleaning system, first tank body 1 is the closed top, bottom open cylinder structure, and the top of first tank body 1 is provided with the feed inlet, the second tank body includes detachable connection's first section 2 and second section 3 from top to bottom, and first section 2 and second section 3 jointly constitute an inverted conical tank body, and the top of inverted conical tank body is connected with the bottom of first tank body 1, and first tank body 1, second tank body jointly constitute a slurry tank with conical bottom, the lateral wall of second tank body first section 2 is provided with the reserved mouth, and the reserved mouth is circumscribed first pipeline 4, and the discharge and cleaning system includes discharge pipe 5 and cleaning and feeding pipe 6, and discharge pipe 5, cleaning and feeding pipe 6 are connected through tee with first pipeline 4.

[0018] In some embodiments of the utility model, first section 2 and second section 3 of second tank body are connected through a plurality of bolts.

[0019] In some embodiments of the utility model, the connecting portion of first section 2 and second section 3 of second tank body is provided with a sealing device, which can be a sealing ring, a sealing gasket or other sealing devices arranged at the connecting portion.

[0020] In some embodiments of the utility model, the outer wall of the connection between the first section 2 and the second section 3 of the second groove body is provided with a rotating connecting device 7, which can be a pin shaft, a hinge or the like, and the function is that after the connecting bolt between the first section 2 and the second section 3 is removed, the second section 3 can be opened from the bottom of the first section 2 but will not fall off, which can ensure safe operation and facilitate subsequent installation.

[0021] In some embodiments of the utility model, control valves are arranged on the first pipeline 4, the discharge pipe 5 and the cleaning feeding pipe 6 respectively.

[0022] In some embodiments of the utility model, the sidewall of the first section 2 of the second groove body is further provided with an observation window 8, and the observation window 8 is sealed and covered with a transparent plate, which can be used to observe the scarring and cleaning conditions of the groove bottom.

[0023] In the description of the present application, it should be explained that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0024] Unless otherwise explicitly specified and limited, the terms "arranged", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be directly connected, can be indirectly connected through an intermediate medium, or can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A slurry tank that facilitates cleaning, characterized by, The first tank, the second tank and the discharging and cleaning system are included, The first tank is a cylinder structure with a closed top and an open bottom, and the top of the first tank is provided with a feeding port; The second tank includes a first section and a second section connected detachably from top to bottom, and the first section and the second section jointly form an inverted conical tank, the height ratio of the second section to the total height of the second tank is 1:(5-10), the top of the inverted conical tank is connected with the bottom of the first tank, and the first tank and the second tank jointly form a slurry tank with a conical bottom, a reserved port is formed on the side wall of the first section of the second tank, and the reserved port is circumscribed by a first pipeline; The discharging and cleaning system includes a discharging pipe and a cleaning and feeding pipe, and the discharging pipe and the cleaning and feeding pipe are connected with the first pipeline through a tee joint.

2. The slurry tank of claim 1, wherein, The first section and the second section of the second tank are connected through bolts.

3. A slurry tank for easy cleaning according to claim 2, wherein A sealing device is arranged at the connection between the first section and the second section of the second tank.

4. The easy-to-clean slurry tank of claim 2, wherein, A rotary connection device is arranged on the outer wall at the connection between the first section and the second section of the second tank.

5. The easy-to-clean slurry tank of claim 1, wherein, Control valves are respectively arranged on the first pipeline, the discharging pipe and the cleaning and feeding pipe.

6. The easy-to-clean slurry tank according to any one of claims 1 to 5, characterized in that An observation window is further arranged on the side wall of the first section of the second tank, and a transparent plate is sealingly covered on the observation window.

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