CN110274058A - A kind of two-phase intelligence commutator - Google Patents

Abstract

The invention discloses a dual-phase intelligent commutator, which relates to the field of alumina production technology, and comprises a commutator body, a sealing plate, a sealing pair, a movable shaft, a driving device, and a bottom cover. The commutator body includes a body 1. Body 2, body 3, and body 4. Body 1 and the upper body 4 are sealed and connected by flanges. Body 4 and the upper body 2 are connected by flanges. A pair of opposite bodies 1. A pair of opposing body 2 is respectively connected with body 3 through flange sealing. The sealing plate is fixed on the movable shaft in the body cavity of the commutator. There are four sealing pairs, and the sealing pairs are opposite to each other. At both ends of the commutator body cavity, the movable shaft penetrates the commutator body from the middle position of the flange plate at the top of the commutator body, and the driving device is above the second body, and the driving device drives the movable shaft to expand and contract up and down; eliminate semen The internal scarring of the cooling plate heat exchanger is energy-saving, environmentally friendly, safe and efficient.

Description

A dual-phase intelligent commutator

technical field

The invention relates to the field of alumina production technology, in particular to a dual-phase intelligent commutator.

Background technique

In the alumina production process, the semen heat exchanger is prone to scarring and clogging, which affects the work progress and must be cleaned in time. However, the cleaning of the semen heat exchanger is labor-intensive, and there are outstanding problems such as high capital investment, high safety risks, and serious pollution. .

Contents of the invention

The technical problem to be solved by the present invention is to provide an intelligent two-phase commutator that can easily eliminate the internal scarring of the semen cooling plate heat exchanger and improve heat exchange efficiency and production efficiency.

The technical solution of the present invention is: a dual-phase intelligent commutator, including a commutator body, a sealing plate, a sealing pair, a movable shaft, a driving device, and a bottom cover; the commutator body includes a body one, Body 2, body 3, body 4, body 1 and body 4 above are sealed and connected by flanges, body 4 and body 2 above are connected by flanges, a pair of opposite bodies 1, A pair of opposite body 2 is respectively connected with body 3 through flange sealing, and body 1, body 2, body 3 and body 4 are all tees; the sealing plates are two positive and negative double cones The plate-type sealing flap, the sealing plate is fixed on the movable shaft in the commutator body cavity; the sealing pair is an annular sealing pair, and the four sealing pairs are opposite to each other, and are respectively fixed at both ends of the commutator body cavity; The movable shaft penetrates the commutator body from the middle position of the cover flange plate at the top of the commutator body; the driving device is above the second body, and the driving device drives the movable shaft to stretch up and down; the bottom cover is on the body The lower part, the bottom cover and the lower part of the body are fixedly connected by a flange;

Preferably, the sealing pair is a hard sealing pair;

Preferably, hard alloy is surfacing on the sealing surface of the sealing plate;

Preferably, the sealing surface of the sealing pair is surfacing with cemented carbide;

Preferably, the inner cavity of the commutator is divided into two movable cavities by a sealing plate in the body of the commutator, and a liquid inlet pipe and a liquid discharge pipe are respectively provided on the commutator body of the cavity;

Preferably, an upper protective tube is inlaid in the middle of the cover flange at the top end of the commutator body, and a lower protective tube is provided at the joint between the movable shaft and the sealing plate.

The beneficial effects of the present invention are: aiming at cleaning the scab in the semen flow channel with mother liquid in the alumina production process, inverting the phase in time according to the flow rate or scarring situation, realizing non-stop production and low-concentration long-term cleaning, replacing the conventional high-concentration short-time shutdown The alkali cleaning process keeps the plate heat exchanger in high-efficiency operation for a long time, improves heat exchange efficiency, increases liquid throughput, saves steam consumption and alkali cleaning costs, greatly reduces labor intensity and environmental pollution, and improves production efficiency.

Description of drawings

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

Reference signs: 1- commutator body; 2- sealing plate; 3- sealing pair; 4- movable shaft; 5- driving device; 6- upper protective tube; 7- lower protective tube; 8- bottom cover; 9 - liquid inlet pipe; 10 - liquid discharge pipe; 11 - body one; 12 - body two; 13 - body three; 14 - body four.

Detailed ways

Below in conjunction with accompanying drawing, technical scheme of the present invention is further explained:

As shown in Figure 1, a dual-phase intelligent commutator includes a commutator body 1, a sealing plate 2, a sealing pair 3, a movable shaft 4, a driving device 5, and a bottom cover 8; the commutator body Including body one 11, body two 12, body three 13, body four 14, body one 11 is connected with body four 14 above by flange sealing, body four 14 and body two 12 above through Flange sealing connection, a pair of relative body one 11, a pair of relative body two 12 are respectively connected with body three 13 by flange sealing, body one 11, body two 12, body three 13, Body four 14 are all tees, and the inner cavity of the commutator body 1 is divided into two movable cavities by the sealing plate 2 in the commutator body 1, and the commutator body 1 of the cavity is respectively provided with There is a liquid inlet pipe 9 and a liquid discharge pipe 10; the sealing plate 2 is a plate-type sealing flap with two positive and negative double-cone surfaces, the sealing surface is surfacing with hard alloy, and the sealing plate 2 is fixed in the cavity of the commutator body 1 On the movable shaft 4; the sealing pair 3 is an annular hard sealing pair, the sealing surface is surfacing with hard alloy, and the four sealing pairs 3 are opposite to each other, and are respectively fixed at both ends of the cavity of the commutator body 1; The movable shaft 4 penetrates the commutator body 1 from the middle position of the top cover flange plate of the commutator body 1, and the upper protective tube 6 is inlaid in the middle position of the top cover flange of the commutator body 1, and the movable shaft 4 There is a lower protective tube 7 at the connection with the sealing plate 2, and the upper protective tube 6 and the lower protective tube 7 are used to protect the movable shaft 4 and prolong the service life; the driving device 5 is above the body 2 12, and the driving device 5 drives the movable shaft 4. The drive device 5 can be equipped with intelligent electric, pneumatic and electro-hydraulic drive devices to meet different needs; the bottom cover 8 is under the body 11, and the bottom cover 8 and the lower part of the body 11 pass through the flange Fixed connection.

The working principle of the present invention is: during operation, the top of the movable shaft 4 is connected with the driving device 5, and the driving device 5 can adopt manual, electric, pneumatic, electro-hydraulic and other operating modes, and the liquid inlet pipe 9 of the dual-phase intelligent commutator 1. The drain pipe 10 is well connected with the pipeline in the production process, and the driving device 5 is started to control the switching process of the dual-phase intelligent commutator. When the driving device 5 drives the movable shaft 4 to move into the body 1 of the dual-phase intelligent commutator, the two The sealing plate 2 and the one-side sealing pair 3 in the body four 14 are closed and sealed. The liquid A entered by the liquid inlet pipe 9 of the body three 13 is discharged through the liquid discharge pipe 10 on the body four 14 through the body two 12; otherwise, B The liquid operation is the same; a set of intelligent commutators are installed at the inlet and outlet of the semen heat exchanger. Without stopping the vehicle, lightly touch the switch to switch the flow direction of semen and mother liquor in about 10 seconds, and use the mother liquor to wash The semen flow channel can quickly remove the scars to ensure the smooth flow channel and heat exchange effect.

The above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Those of ordinary skill in the art should understand that modifications or equivalent replacements to the technical solutions of the present invention without departing from the purpose and scope of the technical solutions of the present invention are all It should be included in the scope of the claims of the present invention.

Claims (6)

1. A dual-phase intelligent commutator, comprising a commutator body, a sealing plate, a sealing pair, a movable shaft, a driving device, and a bottom cover, characterized in that: the commutator body includes body one, Body 2, body 3, body 4, body 1 and body 4 above are sealed and connected by flanges, body 4 and body 2 above are connected by flanges, a pair of opposite bodies 1, A pair of opposite body 2 is respectively connected with body 3 through flange sealing, and body 1, body 2, body 3 and body 4 are all tees; the sealing plates are two positive and negative double cones The plate type sealing flap on the surface, the sealing plate is fixed on the movable shaft in the commutator body cavity; the sealing pair is an annular sealing pair, and the four sealing pairs are opposite to each other, and are respectively fixed at both ends of the commutator body cavity ; The movable shaft penetrates the commutator body from the middle position of the flange plate at the top of the commutator body; the driving device is above the second body, and the driving device drives the movable shaft to expand and contract up and down; the described The bottom cover is under the first part of the body, and the bottom cover is fixedly connected with the lower part of the body through a flange. 2. The dual-phase intelligent commutator according to claim 1, characterized in that: said sealing pair is a hard sealing pair. 3. The dual-phase intelligent commutator according to claim 1, characterized in that: the sealing surface of the sealing plate is surfacing with hard alloy. 4. The dual-phase intelligent commutator according to claim 1, characterized in that: the sealing surface of the sealing pair is surfacing with hard alloy. 5. The dual-phase intelligent commutator as claimed in claim 1, characterized in that: the inner cavity of the commutator is divided into two movable cavities by a sealing plate in the body of the commutator, The body of the commutator is respectively provided with a liquid inlet pipe and a liquid discharge pipe. 6. The dual-phase intelligent commutator according to claim 1, characterized in that: an upper protection tube is inlaid in the middle of the cover flange at the top end of the commutator body, and a lower protective tube is inlaid at the joint between the movable shaft and the sealing plate. protective tube.