CN202414774U - Lime powder feeding device - Google Patents

Abstract

The utility model discloses a lime powder feeding device, which aims to provide a lime powder feeding device capable of quickly unloading lime powder transported by a cement tanker into a relatively high lime powder storehouse. A lime powder feeding device, including a discharge joint, a horizontal conveying pipe, a vertical conveying pipe, and a booster compressed air pipe connected to compressed air, the booster compressed air pipe and the vertical conveying pipe are connected through at least one connecting soft tube connected. The utility model has the advantages of simple structure and convenient use. The lime powder in the cement tank truck can be quickly unloaded into a relatively high lime powder storehouse by inputting the boosting air into the conveying pipe, and the dust will not be scattered when unloading.

Description

A lime powder feeding device

technical field

The utility model relates to a feeding device, in particular to a lime powder feeding device.

Background technique

The existing lime powder feeding device for desulfurization usually uses a cement tanker to directly drive into the lime powder silo with its own compressed air device or transport it into the lime powder silo by a mechanical transportation method such as a bucket elevator.

The mechanical conveying method, such as the bucket elevator conveying method, needs to unload the bulk powder into a small warehouse and then unload it into the mechanical conveying device, which has the disadvantages of slow unloading speed and dust scattering during unloading.

Due to the above shortcomings of the mechanical transportation method, the cement tanker is usually used to drive the lime powder storehouse directly with its own compressed air device. The following defects exist: the working pressure of the cement tanker is 0.2MPa, and the air supply is stopped after the working pressure reaches 0.2MPa , After the pressure drops to a certain extent, the gas supply will start again. This working method determines that the best conveying vertical height is 15 meters, and the horizontal distance is 5 meters. And the above conveying parameters are only for cement, if conveying limestone powder with higher bulk density, the suitable conveying vertical height is lower. At present, the lime powder warehouse for desulfurization is equipped with a large amount of equipment under the warehouse, and the volume of the warehouse is relatively large, and the height of the roof of the warehouse is relatively high, usually greater than 20 meters. The cement tanker is directly driven into the lime powder warehouse with its own compressed air device to unload. The material speed is very slow or cannot be conveyed at all.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a lime powder feeding device that can quickly unload the lime powder transported by the cement tanker into a higher lime powder storehouse.

In order to solve the above technical problems, the utility model is realized through the following technical solutions: a lime powder feeding device, including a discharge joint, a horizontal conveying pipe, a vertical conveying pipe, and a booster compressed air pipe connected to compressed air, The boosting compressed air pipe is connected with the vertical conveying pipe through at least one connecting flexible pipe.

Further, the connecting hose is connected to the vertical delivery pipe through a one-way valve to prevent reverse flow of the booster airflow.

Further, the connecting hose is connected to the booster compressed air pipe through a flow regulating valve, which can control the inflow of the booster compressed air.

Further, there are at least two connecting hoses, and the distance between adjacent connecting hoses is 3 to 7 meters to ensure sufficient air pressure in the pipes to transport lime powder.

Further, the diameter of the booster compressed air pipe is DN40-DN65, which can ensure that the air pressure in the booster compressed air pipe meets the requirements.

Further, the booster compressed air pipe in front of the connecting hose is equipped with valves and pressure gauges in sequence along the compressed air flow direction, so that users can control the air pressure in the booster compressed air pipe.

The beneficial effects of the utility model are: simple structure, easy to use, the lime powder in the cement tanker can be quickly unloaded into a higher lime powder storehouse by inputting the booster air into the delivery pipe, and the dust will not be scattered when unloading .

Description of drawings

Fig. 1 is the structural representation of a kind of lime powder feeding device of the present utility model;

Fig. 2 is the right side view of a kind of lime powder feeding device of the present utility model;

Fig. 3 is an enlarged view of I in Fig. 2 .

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

In Fig. 1 and Fig. 2, a lime powder feeding device includes a discharge joint 2, a horizontal conveying pipe 3, a vertical conveying pipe 4, and a booster compressed air pipe 6 connected to compressed air, the booster compressed air The pipe 6 is connected to the vertical conveying pipe 4 via at least one connecting hose 10 .

In FIG. 3 , the connecting hose 10 is connected to the vertical delivery pipe 4 through a one-way valve 11 to prevent reverse flow of the booster airflow. The connecting hose 10 is connected to the booster compressed air pipe 6 through a flow regulating valve 9, which can control the inflow of the booster compressed air. There are five connecting hoses 10, and the distance between adjacent connecting hoses 10 is 5 meters to ensure that there is enough air pressure in the pipe to transport lime powder. The diameter of the booster compressed air pipe 6 is DN40-DN65, which can ensure that the air pressure in the booster compressed air pipe 6 meets the requirements. The booster compressed air pipe 6 in front of the connecting hose 10 is equipped with a valve 8 and a pressure gauge 7 in sequence along the compressed air flow direction, which is convenient for the user to control the air pressure in the booster compressed air pipe.

When unloading, connect the discharge joint 2 on the horizontal conveying pipe 4 to the discharge port on the cement tank truck 1, start the compressed air device attached to the cement tank truck 1, and input the lime powder in the cement tank truck 1 into the lime powder warehouse 5, open the valve 8 at the same time, observe the pressure display on the pressure gauge 7, and adjust the opening of the valve 8 so that the pressure display value is about 0.25Mpa. After the lime powder is unloaded, stop the compressed air device attached to the cement tank truck 1, close the valve 8, and disassemble the unloading joint 2.

Claims (6)

1. pulverized limestone feeding device; Comprise discharging joint (2), horizontal conveying pipe (3), vertical transport pipe (4); It is characterized in that: also comprise connecting compressed-air actuated boosting compressed air tube (6), said boosting compressed air tube (6) links to each other through at least one hose (10) with vertical transport pipe (4).

2. a kind of pulverized limestone feeding device according to claim 1 is characterized in that: said hose (10) links to each other with vertical transport pipe (4) through check valve (11).

3. a kind of pulverized limestone feeding device according to claim 2 is characterized in that: said hose (10) links to each other with boosting compressed air tube (6) through flow control valve (9).

4. according to claim 1 or 2 or 3 described a kind of pulverized limestone feeding devices, it is characterized in that: said hose (10) has at least two, and the spacing of said adjacent hose (10) is 3～7 meters.

5. a kind of pulverized limestone feeding device according to claim 1 is characterized in that: the caliber of said boosting compressed air tube (6) is DN40～DN65.

6. a kind of pulverized limestone feeding device according to claim 1 is characterized in that: the boosting compressed air tube (6) in said hose (10) the place ahead is gone up along the pressurized air flow direction valve (8), compression indicator (7) is housed successively.

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