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Hopper slag collecting pit

A slag collection pit and funnel-type technology, applied in mining equipment, earthwork drilling, tunnels, etc., can solve problems such as difficult cleaning and traffic obstruction, achieve high slag collection rate and reduce project investment

Active Publication Date: 2012-01-18
POWERCHINA HUADONG ENG COPORATION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the patent of the present invention is to provide a funnel-type slag collection pit for the above-mentioned technical problems of difficult cleaning and traffic obstruction, by setting the bottom funnel-type channel and the bottom or side slag (slag collection) channel method, transfer the slag to a position away from the power generation tunnel in time, improve the slag collection rate, completely prevent the slag from starting again, and optimize the slag cleaning scheme; solve the problem caused by setting the slag collection pit by setting a bypass channel on the side wall of the tunnel To solve the problem of traffic blocking, the water diversion power generation tunnel and slag cleaning are completely separated, which greatly improves the slag collection rate of the slag collection pit, and at the same time provides convenient maintenance, cleaning and traffic conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 , 2 , image 3 As shown, the slag collection pit 2 is centrally arranged at the end of each diversion tunnel 1 of the power station, and its length is determined through tests or similar engineering experience to ensure that the slag falling along the tunnel can smoothly enter the pit under the maximum flow rate. The width of the slag collection pit 2 is the same as the width of the bottom plate of the water diversion tunnel 1, and a ramp with a slope rate of 10% is set at the upstream of the slag collection pit 2 to connect smoothly with the bottom of the water diversion tunnel 1, and the depth of the downstream of the slag collection pit 2 meets the general structural requirements. Take it as 1.5m. A grid beam 8 is arranged on the top of the downstream part of the slag collection pit 2, which ensures a high slag collection rate of the slag collection pit 2 and prevents the slag falling into the slag collection pit 2 from starting again and crossing ...

Embodiment 2

[0022] Such as figure 1 , 2 , image 3 As shown, the slag collection pit 2 is centrally arranged at the end of each diversion tunnel 1 of the power station, and its length is determined through tests or similar engineering experience to ensure that the slag falling along the tunnel can smoothly enter the pit at the maximum flow rate. The width of the slag collection pit 2 is the same as the width of the bottom plate of the water diversion tunnel 1. A ramp with a slope rate of 11% is set at the upstream of the slag collection pit 2 to connect smoothly with the bottom of the water diversion tunnel 1. The depth of the downstream of the slag collection pit 2 meets the general structural requirements. Take it as 2m. A grid beam 8 is arranged on the top of the downstream part of the slag collection pit 2, which ensures a high slag collection rate of the slag collection pit 2 and prevents the slag falling into the slag collection pit 2 from starting again and crossing the slag coll...

Embodiment 3

[0026] Such as figure 1 , 2 , image 3 As shown, the slag collection pit 2 is centrally arranged at the end of each diversion tunnel 1 of the power station, and its length is determined through tests or similar engineering experience to ensure that the slag falling along the tunnel can smoothly enter the pit under the maximum flow rate. The width of the slag collection pit 2 is the same as that of the bottom plate of the water diversion tunnel 1, and a ramp with a slope rate of 12% is set at the upstream of the slag collection pit 2 to connect smoothly with the bottom of the water diversion tunnel 1, and the depth of the downstream of the slag collection pit 2 meets the general structural requirements. Take it as 2.5m. A grid beam 8 is arranged on the top of the downstream part of the slag collection pit 2, which ensures a high slag collection rate of the slag collection pit 2 and prevents the slag falling into the slag collection pit 2 from starting again and crossing the s...

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Abstract

The invention relates to a hopper slag collecting pit which aims to achieve high slag collection efficiency, thoroughly prevent the slag from being started again and optimize the slag cleaning scheme.The invention relates to a hopper slag collecting pit which aims to achieve high slag collection efficiency, thoroughly prevent the slag from being started again and optimize the slag cleaning scheme.The technical scheme is achieved as follows: the hoper slag collecting pit is provided with a diversion tunnel and a slag collecting pit, and the slag collecting pit is arranged at the tail end of th The technical scheme is achieved as follows: the hoper slag collecting pit is provided with a diversion tunnel and a slag collecting pit, and the slag collecting pit is arranged at the tail end of the diversion tunnel. The hopper slag collecting pit is characterized in that a traffic tunnel is arranged near the slag collecting pit, the upper stream of the slag collecting pit is provided with an ie diversion tunnel. The hopper slag collecting pit is characterized in that a traffic tunnel is arranged near the slag collecting pit, the upper stream of the slag collecting pit is provided with an incline which is smoothly connected with the bottom of the diversion tunnel, the lower stream of the bottom of the slag collecting pit is connected with a slag slope mine which is flatly connected withncline which is smoothly connected with the bottom of the diversion tunnel, the lower stream of the bottom of the slag collecting pit is connected with a slag slope mine which is flatly connected with a slag discharging footrill, and the outlet end of the slag discharging footrill is connected with a slag discharging channel. The invention can be applied to the tunnel project of diversion undergroa slag discharging footrill, and the outlet end of the slag discharging footrill is connected with a slag discharging channel. The invention can be applied to the tunnel project of diversion underground generation.und generation.

Description

technical field [0001] The invention mainly relates to a funnel-type slag collection pit, which is mainly used in water conservancy and hydropower projects, especially in long-diversion underground power generation tunnel projects. Background technique [0002] For long water diversion tunnel projects in the field of water conservancy and hydropower, if the geological conditions permit, in order to speed up the construction progress and reduce project investment, some sections of the long water diversion tunnels in the engineering buildings are mostly used without lining or spray anchor lining. During the operation of the power station, it is inevitable that some parts of the spray layer and surrounding rock will fall off. Although it will not affect the permanent stability of the tunnel, once these falling blocks enter the downstream power generation unit, it will cause accidents such as wear of turbine components. Therefore, setting up slag collection pits at the tails of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00E21D9/14
Inventor 潘益斌吴旭敏陈祥荣侯靖
Owner POWERCHINA HUADONG ENG COPORATION LTD