Production method of high-concentration potassium chloride pellet

The invention discloses a production method of high-concentration potassium chloride pellets. The production method is characterized by comprising the following steps: uniformly mixing and crushing potassium chloride serving as a raw material and a pelleting agent, then enabling the mixture to enter agglomeration granulation equipment, carrying out agglomeration granulation according to a conventional agglomeration granulation technology, drying, cooling and sieving particles to obtain the high-concentration potassium chloride pellets, wherein the pelleting agent is a mixture of polyacrylamide, sodium silicate and borax, the weight of the pelleting agent accounts for 0.5%-5% of the weight of the potassium chloride raw material. The production method has the advantages that the strength of wet particles is improved by adding few pelleting agent under the condition of having no influence the nutrient content, so that the agglomeration granulation technology can be used for pelleting, and the defect that the pri