CN212955277U

CN212955277U - Adsorption tower

Info

Publication number: CN212955277U
Application number: CN202021308869.XU
Authority: CN
Inventors: 周光浪; 熊现新; 胡常光; 周东云; 段胜红; 代生权; 姜亚雄; 谢恩龙; 高起方
Original assignee: Yunnan Gold Mining Group Co ltd
Current assignee: Yunnan Gold Mining Group Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-04-13
Anticipated expiration: 2030-07-07

Abstract

The utility model belongs to the field of gold extraction, in particular to an adsorption tower, which comprises a tower body, wherein the tower body is in a cylindrical shape, the upper end of the tower body is provided with a carbon loading port, the lower end of the carbon loading port is provided with a carbon separation screen, the carbon separation screen extends into the tower body, the carbon loading port is provided with a water outlet pipe, the lower end of the tower body is provided with a carbon unloading port, and the carbon unloading port is provided with a gate valve; still include the inlet tube, the end of inlet tube is connected with the floral tube, and the outside cladding of floral tube has one deck stainless steel screen cloth, and the opening that the floral tube that the cladding has stainless steel screen cloth through tower body lower part lateral wall stretches into inside the tower body, through the flange with inlet tube sealing connection on the tower body. The utility model discloses at adsorption tower body inlet pipe end installation floral tube device, solve stifled charcoal problem. The stainless steel filter screen with the aperture smaller than the minimum diameter of the activated carbon is bound on the outer side of the perforated pipe, so that the activated carbon in the adsorption tower is prevented from entering the water inlet pipe under the pressure of backwater to cause carbon blockage.

Description

Adsorption tower

Technical Field

The utility model belongs to the gold draws the field, concretely relates to adsorption tower.

Background

In the heap leaching gold extraction process, gold-containing precious liquid obtained by spraying and leaching ores flows back to a workshop precious liquid pool through a pipeline, and is pumped into an adsorption tower filled with activated carbon by a pump for adsorption, so that a gold-loaded carbon product is finally obtained. The height of the currently used adsorption tower is 3.1 meters, the diameter of the tower body is 1 meter, the water inlet pipe is arranged in the tower, the length of the water inlet pipe in the tower is about 2.6 meters, and water flows into the tower from the lower part through the water inlet pipe in the tower and flows out from the upper part of the tower after being adsorbed by active carbon. 500-800 kg of carbon is filled in each tower, 5 adsorption towers are connected in series to form a group, a 22kw centrifugal pump is generally adopted to pump water from a pregnant solution pool for 2 groups of adsorption towers to perform adsorption operation, the flow rate of each group of adsorption towers is controlled to be 30-35 m3/h, and the structure of the adsorption towers is shown in figure 1.

(1) When the pump is stopped or the power is cut off suddenly, carbon in the adsorption tower can enter into the inlet tube under the action of the pressure of the return water, so that the inlet tube is blocked, and if the pump is restarted, the pump, the motor and the adsorption tower can be damaged under high pressure (mainly shown in that the edge of the upper part of the tower body is broken by washing, so that water leakage is caused).

(2) When the water inlet or the water outlet of the adsorption tower is adjusted, the water inlet pipe of the adsorption tower is blocked by carbon.

(3) 500-800 kg of carbon is filled in each adsorption tower, when the adsorption tower is blocked, the carbon in the adsorption tower needs to be discharged, and the adsorption operation can be continued only after the tower in the water inlet pipe is removed, so that the labor intensity is greatly increased.

(4) The inlet tube is installed inside the tower, and is very inconvenient when clearing up, installing, changing it, need enter the tower interior operation, and the noble liquid aquatic all contains the sodium cyanide of certain concentration, has the potential safety hazard in the operation process.

(5) If the adsorption tower blocks carbon in rainy season, great difficulty is brought to flood control work.

Disclosure of Invention

The utility model provides an adsorption tower can solve the stifled charcoal problem of active carbon adsorption tower inlet pipe to reduce the intensity of labour among the absorption operation process, improve work efficiency.

The specific technical scheme is as follows: an adsorption tower comprises a tower body, wherein the tower body is cylindrical and is used for storing activated carbon, a carbon loading port is formed in the upper end of the tower body, a carbon separation screen is arranged at the lower end of the carbon loading port, the carbon separation screen extends into the tower body, a water outlet pipe is arranged on the carbon loading port, a carbon unloading port is formed in the lower end of the tower body, and a gate valve is arranged on the carbon unloading port; still include the inlet tube, the end of inlet tube is connected with the floral tube, and the outside cladding of floral tube has one deck stainless steel screen cloth, and tower body lower part lateral wall is provided with the opening, and the opening part is provided with the flange, and the opening that the floral tube that the cladding has stainless steel screen cloth passes through tower body lower part lateral wall stretches into the tower body inside, is provided with the flange on the inlet tube, through the flange of opening part and the flange on the inlet tube with inlet tube sealing connection on the tower body. The perforated pipe is a steel pipe with small holes, and the tail end of the perforated pipe is sealed. The tail end of the floral tube is in a neat mouth shape or a conical shape, and the neat mouth shape is a plane seal of the tail end of the floral tube.

Has the advantages that: (1) a perforated pipe device is arranged at the water inlet pipe end of the tower body of the adsorption tower, so that the problem of carbon blockage is solved. The stainless steel filter screen with the aperture smaller than the minimum diameter of the activated carbon is bound on the outer side of the perforated pipe, so that the activated carbon in the adsorption tower is prevented from entering the water inlet pipe under the pressure of backwater to cause carbon blockage.

(2) The arrangement of the water inlet pipe and the water inlet is optimized, and the water inlet pipe of the adsorption tower is changed to the outer side of the lower part of the adsorption tower to be connected so as to facilitate the installation, the disassembly and the replacement of the floral tube.

Drawings

FIG. 1 is a prior art drawing;

FIG. 2 is a drawing of the present invention;

FIG. 3 is a schematic view of a floral tube;

wherein, 1, a tower body; 2, a charcoal filling port; 3, separating a carbon screen; 4, discharging a water pipe; 5, a carbon unloading port; 6, a water inlet pipe; 7 floral tubes.

Detailed Description

As shown in fig. 2 to 3, an adsorption tower comprises a tower body 1, wherein the tower body 1 is cylindrical and used for storing activated carbon, a carbon loading port 2 is arranged at the upper end of the tower body, a carbon separating screen 3 is arranged at the lower end of the carbon loading port 2, the carbon separating screen 3 extends into the tower body 1, a water outlet pipe 4 is arranged on the carbon loading port 2, a carbon discharging port 5 is arranged at the lower end of the tower body 1, and a gate valve is arranged on the carbon discharging port 5; still include inlet tube 6, the end of inlet tube 6 is connected with floral tube 7, the outside cladding of floral tube 7 has one deck stainless steel screen cloth, 1 lower part lateral wall of tower body is provided with the opening, the opening part is provided with the flange, the floral tube 7 that the cladding has the stainless steel screen cloth stretches into 1 inside the tower body through the opening of tower body lower part lateral wall, be provided with the flange on the inlet tube 6, flange through the opening part on flange and the inlet tube 6 with inlet tube sealing connection on the tower body 1. The perforated pipe 7 is a steel pipe with a small hole, the tail end is sealed, and the sealed position is provided with the small hole. The lower end of the carbon containing port 2 is provided with a hole, the upper end of the carbon separating screen 3 is provided with a frame around, the lower end of the carbon separating screen 3 extends into the tower body 1 from the hole at the lower end of the carbon containing port 2, the frame is hung at the hole at the lower end of the carbon containing port 2 through the frame around the upper end of the carbon separating screen 3 and is fixed through a bolt.

The opening of the side wall of the lower part of the tower body is provided with a flange, the floral tube coated with the stainless steel screen cloth passes through the flange and extends into the tower body, the floral tube coated with the stainless steel screen cloth is sealed and loaded inside the tower body through the flange on the water inlet pipe and the flange of the side wall of the lower part of the tower body. And closing the gate valve on the carbon unloading port, taking out the carbon separation screen, filling active carbon into the tower body through the carbon filling port, and re-installing and fixing the carbon separation screen. The noble liquid (liquid containing noble metal) is conveyed into the tower body through the water inlet pipe, and flows out of the water outlet pipe after being adsorbed by the activated carbon. When need to be changed floral tube and stainless steel screen cloth, need to change after the whole discharges of active carbon in the tower body.

Examples

(1) And manufacturing a 'perforated pipe' device for being arranged at the water inlet pipe end of the adsorption tower. The design scheme of the floral tube is as follows: firstly, manufacturing an iron pipe with the diameter of 100mm and the length of 1000 mm; secondly, welding a flange plate (phi 125) at one end of the iron pipe for connecting a water inlet pipe outside the adsorption tower, and facilitating the installation, rotation, disassembly and replacement of the perforated pipe; the other end is welded by an iron sheet with the diameter of 100mm, and the port is sealed; and thirdly, punching holes (including end-welded iron sheets) at positions which are more than 100mm away from the end of the mounting flange disc on the iron pipe, wherein the diameter of each small hole is 12mm, the distance between the holes is 3mm, the holes are used for enabling water in the water inlet pipe to enter the adsorption tower through the small holes in the perforated pipe, and the perforated pipe is designed as shown in fig. 3.

(2) Installing a screen: after the 'perforated pipe' is manufactured, a 16-mesh stainless steel screen mesh (the granularity of the used activated carbon is 12 meshes) is bound on the 'perforated pipe', and the screen mesh is fixed by an iron wire to form a carbon separation screen mesh so as to prevent the activated carbon in the tower from entering a water inlet pipe.

(3) Optimizing the arrangement of a water inlet pipe: the water inlet pipe is changed to the outer side of the adsorption tower, and the water inlet pipe is connected with the 'perforated pipe' through the flange, so that the 'perforated pipe' can be conveniently inserted into or taken out of the adsorption tower.

(4) Optimizing the arrangement of the water inlets of the adsorption tower: the water inlet of the adsorption tower is changed to the lower position (about 420mm away from the bottom of the adsorption tower), an iron pipe with the diameter of 120mm and the length of 80mm is used for welding and mounting, and an upper flange (phi 125) is welded at the end port.

(5) The 'perforated pipe' is installed and connected: inserting the 'perforated pipe' wrapped with the screen mesh into the adsorption tower from the water inlet on the adsorption tower, fixing the water inlet pipe and the 'perforated pipe' through bolts and nuts, and installing the 'perforated pipe' to form the adsorption tower structure shown in figure 2.

Claims

1. An adsorption tower comprises a tower body, wherein the tower body is cylindrical and is used for storing activated carbon, a carbon loading port is formed in the upper end of the tower body, a carbon separation screen is arranged at the lower end of the carbon loading port, the carbon separation screen extends into the tower body, a water outlet pipe is arranged on the carbon loading port, a carbon unloading port is formed in the lower end of the tower body, and a gate valve is arranged on the carbon unloading port; its characterized in that still includes the inlet tube, and the end of inlet tube is connected with the floral tube, and the outside cladding of floral tube has one deck stainless steel screen cloth, and tower body lower part lateral wall is provided with the opening, and the opening part is provided with the flange, and the floral tube that the cladding has stainless steel screen cloth stretches into the tower body through the opening of tower body lower part lateral wall inside, is provided with the flange on the inlet tube, through the flange of opening part and the flange on the inlet tube with inlet tube sealing connection on the tower body.