JPH0959641A - Apparatus for supplying sealing mortar to coke oven charging lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the utilization efficiency of mortar, prevent the blockade of piping, and enable the application of a low-cost apparatus by improving a system for supplying mortar from a mortar circulation route to a mortar supply ring. SOLUTION: This apparatus comprises a mortar circulation route comprising a mortar storage tank 1 carried on a coke oven charging car, circulating pump 2, and circulation piping 3 and branch routes 4 each extending fro the circulation route to a supply ring 6 which is to be arranged at the periphery of a charging lid 5. Each of the branch routes 4 is equipped with a valve 11 controlled by a timer 10 a near the base of the branch route 4, and a compressed air supply pipe 12 is connected to each branch route.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying mortar for sealing to a lid in a coke oven, and more particularly, to an inexpensive facility with high mortar usage efficiency and no blockage in piping. The present invention relates to an apparatus for supplying a mortar for sealing a lid of a coke oven, which is improved so as to be applicable.

[0002]

2. Description of the Related Art In the operation of a coke oven, a sealing mortar is provided around a charging lid in order to prevent leakage of gas produced by dry distillation from a charging port after charging a carbonization chamber by a charging vehicle. Will be applied.

[0003] A mortar supply device for sealing a coke oven charging lid basically forms a mortar circulation path by a mortar storage tank mounted on a coke oven charging vehicle, a circulation pump, and a circulation pipe. A branch from the mortar circuit is connected to a supply ring applied around the charging lid. The supply ring has an appropriate number of nozzles on its inner periphery, and is installed, for example, on a lid removing machine or a charging sleeve equipped with an elevating mechanism, and is positioned around the charging lid by driving these. .

In a conventional mortar supply device for sealing, an opening / closing valve controlled by a timer is arranged at the base of the branch passage, and the mortar is supplied to the supply ring for a predetermined time by the discharge pressure of a circulation pump.

[0005]

However, the conventional method has the following disadvantages. (1) Despite the small amount of mortar used at one time, since the capacity of the flow path from the branch path to the supply ring is much larger than that, an unnecessary amount of mortar is required in one supply operation. Is taken out to the branch pipe side, and mortar is wasted. (2) The remaining mortar easily blocks the flow path from the branch path to the supply ring. (3) Since the circulation pump also has a role of supplying mortar to the flow path from the branch path to the supply ring, the capacity must be large. (4) Since the mortar is discharged by the large-capacity circulating pump, the on-off valve arranged in the branch passage is easily worn.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a coke improved in such a manner that the use efficiency of mortar is high, and there is no clogging in the piping and inexpensive equipment can be applied. An object of the present invention is to provide a mortar supply device for sealing a furnace charging lid.

[0007]

That is, the gist of the present invention is to form a mortar circulation path by a mortar storage tank, a circulation pump, and a circulation pipe mounted on a coke oven charging car, and to form a mortar circulation path from the mortar circulation path. In a mortar supplying device for sealing a coke oven charging lid in which a branch path is connected to a supply ring applied around a charging lid, an on-off valve controlled by a timer is disposed at a base of the branch path. And a mortar supply device for sealing a lid for charging a coke oven, which is connected to a compressed air supply pipe.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a conceptual diagram focusing on a mortar circulation path in an embodiment of the present invention, and FIG. 2 is a conceptual diagram focusing on a mortar supply unit in the embodiment of the present invention.

The mortar supply device for sealing of the present invention is basically the same as the conventional device, and includes a mortar storage tank (1) mounted on a coke oven charging vehicle (not shown) and a circulation pump (2). ) And a circulation pipe (3) to form a mortar circulation path, and a branch path (4) from the mortar circulation path is connected to a supply ring (5) applied around the charging lid (5). Is done. A plurality of branch paths (4) are provided according to the number of charging lids (5), and have a flexible portion.

As the mortar, a known mortar can be used, and the mortar is usually adjusted in an adjusting tank (not shown) provided at an appropriate place on the coke oven. Then, the mortar storage tank (1) mounted on the loaded vehicle receives the mortar from the above-mentioned adjustment tank as appropriate by moving the loaded vehicle.

In the example shown, the supply ring (6) applied around the charging lid (5) comprises a charging sleeve (7).
It is installed at the lower end of the fire protection hood (8) arranged around the hood, and is positioned around the charging lid (5) by the lowering of the fire protection hood (8). The supply ring (6) has three nozzles (9) at equal intervals on the inner periphery thereof, and these nozzles (9) are open toward the periphery of the charging lid. The mortar discharged from the nozzles (9) spreads along the periphery of the charging lid and then solidifies to seal the coke oven charging lid. Although the elevating mechanism of the fire protection hood (8) is not particularly shown, a well-known mechanism such as a cylinder / crank mechanism installed in the loaded vehicle can be used as it is, and also not shown. The lid remover moves laterally after descending, enters through the opening of the fire protection hood (8), and detaches the lid. Supply ring (6)
May be installed on a lid removing machine or a charging sleeve according to a known method.

According to the present invention, there is provided a sealing mortar supply device configured as described above, wherein an on-off valve (11) controlled by a timer (10) is arranged at the base of the branch path (4), and a compressed air supply pipe is provided. (12) is connected. In the present invention, the on-off valve (1)
Although 1) is not particularly limited, an inexpensive two-way ball valve is preferably used.

The on-off valve (11) controlled by the timer (10) has a function of cutting out a fixed amount of mortar into the branch passage (4), and its opening time is set once around the charging lid. The time required for the amount of mortar to be supplied (for example, about 200 ml) to be cut out to the branch passage (4) by the circulation pump (2) is set. Compressed air supply piping (1
2) has a function of supplying the mortar cut into the branch passage (4) to the periphery of the charging lid (5) through the supply ring (6), and usually has a function of supplying the mortar to the downstream side of the on-off valve (11). It is connected close to the on-off valve (11). In addition, on-off valve (11)
Is a three-way valve, it is connected to the flow path of the valve. The drive control of the compressed air supply pipe (12) is performed by using the above-mentioned timer or by a combination of a pressure sensor and the like.

The sealing mortar supply device of the present invention is used, for example, in the following coal charging operation. First, the fire protection hood (8) is lowered, the charging lid (5) is removed by the lid removing machine, the charging sleeve (7) is lowered, and then the coaling operation is performed, and the charging sleeve (7) is raised. After that, the residual coal is blown into the carbonization chamber, the charging lid (5) is set by the lid removing machine, and then the mortar is cut out and supplied by the sealing mortar supply device of the present invention, and the fireproof hood (8)
To rise.

[0015]

According to the present invention described above, the following specific effects can be obtained. (1) Since the mortar corresponding to the amount used at one time can be cut out, the mortar is not wasted and the use efficiency is high. (2) Since no mortar remains in the flow path from the branch path to the supply ring, there is no blockage of the pipe. (3) Since the circulation pump is used exclusively for circulation, a small capacity pump may be used. (4) Since the mortar is discharged by the small-volume circulating pump, wear of the on-off valve arranged in the branch passage is small.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram centering on a mortar circuit in an embodiment of the present invention.

FIG. 2 is a conceptual diagram focusing on a mortar supply unit in an embodiment of the present invention.

[Explanation of symbols]

 1: Mortar storage tank 2: Circulation pump 3: Circulation pipe 4: Branch line 5: Charging lid 6: Supply ring 7: Charging sleeve 8: Fire protection hood 9: Nozzle 10: Timer 11: On-off valve 12: Compressed air supply Plumbing

Claims (1)

[Claims] 1. A mortar circulation path is formed by a mortar storage tank, a circulation pump, and a circulation pipe mounted on a coke oven charging vehicle, and a branch path from the mortar circulation path is applied around a charging lid. In a mortar supply device for sealing to a coke oven charging lid connected to a supply ring,
A mortar supply device for sealing a lid in a coke oven, wherein an on-off valve controlled by a timer is arranged at a base of the branch passage and a compressed air supply pipe is connected.