Cement caking waste grinding device and using method thereof

Abstract

The invention discloses a cement caking waste grinding device. The cement caking waste grinding device comprises a double-gate type circulating screening and feeding device, a stepped continuous layered grinding device and an independent detachable material collecting device, the stepped continuous layered grinding device is arranged on the double-gate type circulating screening and feeding device, and the independent detachable material collecting device is arranged on the double-gate type circulating screening and feeding device. The invention belongs to the technical field of building material waste recovery, and particularly relates to the cement caking waste grinding device and a using method thereof. Blanking, screening and secondary grinding of large particles which are not completely ground are orderly controlled through the double-gate type circulating screening and feeding device, a grinding part is designed to be the stepped continuous layered grinding device, the effect of continuous grinding in a relatively closed space is achieved, during grinding, a grinding base and cement powder on the base are heated through an electric heating plate, and the problems that in the prior art, cement recycling treatment is difficult, and in the prior art, moisture is not easy to control, and grinding efficiency is low are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of building material waste recycling, and specifically refers to a cement agglomerated waste grinding device and a use method thereof. Background technique [0002] Cement is a powdery hydraulic inorganic gelling material. It can be mixed with water to form a slurry. It can be hardened in the air or in water, and can firmly bond sand, stone and other materials together. It is a common foundation. Building materials, the hydration reaction of cement is a series of complex physical and chemical changes. After cement is combined with water, it can form a solid with high adhesion and hardness. The water in the product exists in the form of hydroxyl groups. [0003] Since cement hydration is an irreversible reaction, and even if the hydrated cement is ground into the original state, it no longer has the adhesiveness and structural strength required by the building, so it can only be buried and backfilled as const...

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Problems solved by technology

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a cement agglomerated waste grinding device and its use method. Abandoned building materials find a way to re-create value, and make the industrialized continuous production of this transformation process possible, which has extremely high environmental protection, creative significance, economic value and practical value; the research and development of the present invention first solves the problem of hardened cement The problem that cannot be used and is difficult to deal with is different from the structural strength of building materials. Paints, pigments, etc. pay more attention to the fineness of toners. Therefore, when used as toners, the particle size of powdered cement is smaller than that of cement in hardening. The previous particles were even smaller, so the particle size of the finished product must be strictly sieved and controlled. In order to improve the utilization rate of materials under strict conditions, the present invention controls the blanking in an orderly manner through a double-gate circulating screening feeding device. , sieving, and secondary grinding of large particles that are not completely ground; in order to simplify the structure, the main working part of the present invention, that is, the grinding part is designed as a stepped continuous layered grinding device, with a small conical grinding base and a grinding The bodies rotate with each other, and the material to be ground can continuously fall under the action of gravity while grinding. The conveying device during the grinding process is omitted, and the effect of continuous grinding in a relatively closed space is realized. The structure cost and time cost of the feeding and unloading process in the grinding work improve the grinding efficiency. When grinding, the electric heating plate is used to heat the ground base and the cement powder on the base to remove the hydrogen and oxygen atoms in the hydroxyl group and ensure the toner. Drying, reducing the impact on the pigment base during use, controlling the opening and closing of the feeding port through a butterfly valve, and discharging once every certain period through a pull-out collection box, so that the invention can be used independently of other equipment. The scope of application is increased, which effectively solves the problems of difficult cement recycling and processing in the current market, and the existing grinding technology is difficult to control moisture and low grinding efficiency.

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