50results about How to "Avoid pipe blockage" patented technology

The invention discloses a construction method of an ultra-deep anti-seepage wall. The construction method comprises the following steps of in a grooving construction process of the ultra-deep anti-seepage wall, if the anti-seepage wall needs to be embedded into a high and steep bed rock of a riverbed, forming a slotted hole by adopting a composite blasting method; after the slotted hole is formed,pouring concrete into the slotted hole by adopting a dynamic hole cleaning method to prevent the upper layer of the concrete and a mixed slurry flocculate formed by slurry precipitation in the slotted hole from being cemented and hardened so as to continuously pour the concrete to form a continuous wall body in the vertical direction; and when the concrete is poured into the slotted hole, preventing the poured concrete from entering the inner part of a joint pipe to cause the joint pipe to be cast through a valve assembly of the joint pipe arranged at the end of the slotted hole and an adjusting assembly for adjusting the opening degree of the valve assembly. According to the construction method disclosed by the invention, the anti-seepage wall can be constructed in a deep covering layerwith the deepest depth exceeding 180 meters under the condition of bad construction conditions, the construction method is high in grooving efficiency and good in effect, and the construction period of the anti-seepage wall is shortened and the construction quality of the anti-seepage wall is guaranteed.

The invention discloses an atomizing and spraying integrated dust remover, and relates to the technical field of dust removing. The atomizing and spraying integrated dust remover comprises a dust suction hood, wherein a dust suction opening is formed in the lower end of the dust suction hood; a plurality of anti-escape atomizing nozzles are fixedly formed in the inner wall of the lower end of thedust suction hood along the circumference; a plurality of dust capturing atomizing nozzles are fixedly arranged on the inner wall of the dust suction hood along the circumference; a first dust capturing hood is arranged above the dust suction hood; a second dust capturing hood is arranged above the first dust capturing hood; a plurality of second dust capturing rotary atomizing nozzles are fixedlyarranged on the inner wall of the second dust capturing hood; liquid collection components and first dust capturing rotary atomizing nozzles are arranged at the inner parts of the first dust capturing hood and the second dust capturing hood; a spraying dust capturing hood is arranged above the second dust capturing hood; spraying nozzles are arranged at the inner part of the spraying dust capturing hood; the top part of the spraying dust capturing hood is communicated with an inlet of an induced draught fan through an air duct. According to the atomizing and spraying integrated dust remover disclosed by the invention, dust can be captured through the combined action of atomizing and spraying, air containing steam and dust is prevented from directly entering a pipeline to cause pipeline blockage, the structure is simple, stable and firm, and a dust removing effect is good.

The invention discloses a dynamic hole cleaning method for an ultra-deep impermeable wall. The method includes the steps that after construction of a trench hole of the ultra-deep impermeable wall iscompleted, the trench hole is cleaned, and a plurality of embedded pipes, a joint pipe and a plurality of pouring conduits are lowered into the trench hole; air pipes for applying air force to the trench hole to be poured with concrete are lowered between the adjacent pouring conduits; and the concrete is poured into the trench hole through the pouring conduits, continuous lifting slurry discharging is carried out on the trench hole poured with the concrete by utilizing the air force applied by the air pipes to synchronously discharge slurry-mixed floccules formed by the upper layer of the concrete in the trench hole and slurry, and then the vertically continuous ultra-deep impermeable wall is formed by the continuously poured concrete. By means of the method, impermeable wall constructioncan be carried out on a river dike with the largest depth exceeding 180 meters, the slurry-mixed floccules and waste residues at the hole bottom are thoroughly removed during impermeable wall construction, the hole cleaning effect is guaranteed, the situation of pipe blockage is avoided, concrete pouring can be continuously carried out, and the phenomenon that the impermeable wall breaks due to cementation and hardening of the slurry-mixed floccules will not occur.