JPS5820534A - Transport method and its device of pulverulent body - Google Patents

Abstract

PURPOSE:To safely and efficiently perform transport and discharge of a pulverulent body, by containing the pulverulent body of powdered coal and the like in a storage tank, detaching the storage tank from a car body in a supply base, maintaining the interior of the tank under an inactive gas atmosphere and discharging the pulverulent body. CONSTITUTION:Firstly in an acceptance base of powdered coal at its loading, the powdered coal in a base silo is thrown into a storage tank 3 of a vehicle 1 from an upper filler port, after filling of the coal, the vehicle 1 is moved travelling to a powdered coal supply base. In the supply base, firstly the vehicle 1 is connected to the ground by an earth 8A, and the storage tank 3 is unloaded on a deck 15 while being suspended by turning operation of an L-shaped arm 17 by using a roller 20 and the like. Sucondly, an inactive gas feed port in the supply base side is connected to a connection port of the storage tank 3. (both ports not shown in the drawing). Under an inactive gas atmosphere maintained internally of said storage tank 3, a screw conveyer or the like, used as a discharge means in the tank 3, is driven to discharge the powdered coal.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a transport vehicle that safely and efficiently performs the process of filling, transporting, and discharging explosive or reaction tanks such as pulverized coal, and improves the operational efficiency of vehicles and storage tanks.
Regarding the stem.

For example, when using the right leg as an energy source,
Treating it as a powder or granular material is due to its filling ratio due to a reduction in porosity in the storage tank, which increases the volumetric efficiency of the tank, ease of handling due to the fluid behavior of the powder, and combustibility or reactivity in a furnace. It is advantageous in various respects, such as improved ash content and ease of ash treatment. However, pulverized coal carries the risk of causing a powerful dust explosion if air is mixed in with it, so pneumatic transport through pipes is extremely dangerous, and transporting by vehicle in tanks also requires filling, It is necessary to strictly control the transportation and discharge processes safely and efficiently, and to increase the operational efficiency of vehicles and tanks.

The present invention comprehensively solves this problem by rationally interconnecting various facilities at a pulverized coal receiving base and a supply base, vehicles responsible for long-distance transportation between the two bases, and storage tanks at remote facilities. This solution provides a high level of safety for facilities related to the -V-Stem, and the efficiency of utilization of each facility is extremely high. The method for transporting powder of the present invention involves loading powder into one storage tank mounted on a vehicle body at a receiving base, removing the storage tank from the vehicle body at a supply base, and filling the storage tank with inert gas from the base side. The apparatus according to the present invention is characterized in that it can be discharged in an atmosphere of powdery inert gas within the tank by filling the tank with the fuel and activating the drive means mounted on the storage tank. , a storage tank is removably mounted on the vehicle body, a driving means mounted on the storage tank is configured to be operable by a power source on the base side, and a connection port is provided to the storage tank with an inert gas supply port on the base side. It is characterized by having the following.

Hereinafter, the present invention will be explained specifically and in detail with reference to embodiments shown in the accompanying drawings.

Figure a) shows the car body 1 of vehicle l) at a pulverized coal receiving terminal.
Storage tank 1ull C & Ikesuiro (
4) Shows the state in which pulverized coal is being loaded through the connection. ・Before loading, the storage tank (31 contains leg acid gas, nitrogen lll1
'b The tank is filled with inert gas, but if it is not filled or insufficient, use the inert gas source at the receiving base to connect the connection port (5) attached to the storage tank 131, check the valve 16
), the storage tank ts through the conduit 17) (see Figure 6).
An inert gas can be injected into I. The amount of inert gas in the tank is discharged as fine powder is loaded. During loading, the car 11111 is connected to ground 181R, and static electricity generated by powder inflow friction and the like is discharged.

No. 111i11- indicates a state in which the vehicle ill is being transported. Although the connection with booth (8) has been disconnected, the vehicle width (
凰) is discharged from Earth space 1v) lit) W-. The 1m1 storage tank is separated from the inert gas source at the receiving terminal, but it is filled with inert gas.During transportation, the pulverized coal in the collection tank (1) is exposed to direct sunlight, causing the tank to overflow and The temperature may rise or oxidize due to residual oxygen, causing heat generation and reaching dangerous temperatures. In this case, the emergency inert gas is injected into the storage tank (accommodation tank 13 for injecting into ml).
As shown in Fig. 6, the IC, the inert gas cylinder αυ, the pressure reducing valve α1, the temperature measuring valve αυ, and the electromagnetic on-off valve (14) operated by the controller aj are connected to the tank via the pipe (7). A conduit leading inside is connected.

Figures 8 to 4 show details of the vehicle 111 and the storage tank (31) detachably mounted on the vehicle body 111.
Figure 1 shows the state in which the vehicle (1) arrives at the pulverized coal supply base and points its rear toward the tank storage area. In this state, the vehicle (1) is grounded (aA) IC, and the tank is unloaded. Auxiliary wheels to prevent the front of the vehicle from lifting are lowered.

Figure 1 shows the state in which the storage tank 111 is being removed from the vehicle (1).The vehicle body it) is a hydraulically driven slant-shaped arm aη.
and a rear guide quadruple. The storage tank 11 has lobes at the front and rear of the lower part, and a hanging post at the front. By raising the L-shaped arm 50fi on the hanging boss @, the IIIX portion of the storage tank (3) is lifted and moved backward to be transferred to the deck If61 using rollers etc. as a guide. 1st! il (e) is the storage tank (31
shows a state in which the transfer to deck +151 has been completed.

The 1st rear car 1m+11 was disconnected from the hanging post @ and the ground (8A), detached from the storage tank (31) as shown in Figure 1 (f), loaded with another empty storage tank, and returned to the receiving base. The loading and unloading of the storage tank 13) is not limited to the example of turning.

Inside the storage tank 13), a screw conveyor set of pulverized coal discharge means (2) is rotatably equipped on both sides along the bottom of the hopper-shaped lower part of the storage tank 13). A driving means, for example a hydraulic motor, is mounted on the front part. When discharging and supplying pulverized coal, the discharging means is not driven by the power source of the vehicle 11), but is operated by being connected to a power source below the deck (for example, hydraulic pressure 1). - The discharge end is connected to the discharge pipe (to) below the deck.

The above-mentioned connection port (61 is the inert gas supply port on the supply base side @ C, see Figure 6) is connected to the IC provided in the storage tank till, and the inside of the tank is maintained in an inert gas atmosphere. Fine powder is discharged. Although pulverized coal was used as an example in the detailed explanation 4 of the above embodiment, the powder is not limited to this.

As can be seen from the explanation of the structure and operation of the present invention, the following effects can be obtained according to the present invention.

When discharging and supplying the powder from the Tl+ storage tank, the discharging is performed in combination with mechanical discharging means without relying solely on the pressure of the inert gas used to supply and fill the tank, so discharging is very effective. This allows the capacity of the storage tank to be expanded and reduces the amount of inert gas escaping.

Vehicle No. 121 does not take on the role of discharging and supplying powder, and can move freely after leaving the storage tank, increasing operational efficiency.

completely safe.

(4) By rationally linking various facilities of neighboring facilities, it is possible to avoid increasing the facility cost for the entire system.

[Brief explanation of the drawing]

Figure 1 t41C mouth) (c) L:l (e) The bad thing is the I of the present invention
Figure 2 is a side view of an example of the vehicle and storage tank; Figure 8 is a partially cutaway plan view thereof;
FIG. 4 is a rear view, and FIG. 6 is a diagram of the inert gas piping of the storage tank.

Claims (1)

[Scope of Claims] Powder is loaded into a storage tank mounted on the vehicle body at the Il+ reception base, and while the storage tank is removed from the vehicle body at the supply base, the storage tank is filled with inert gas from the base side. A method for transporting powder, which is configured to be able to be discharged in an atmosphere of powder inert gas within the storage tank by activating a drive means mounted on the storage tank. (If a storage tank is removably mounted on the 21 vehicle body and the drive means mounted on the storage tank is configured to be operable by a power source on the base side, then A powder transport device equipped with a connection port for a gas supply port.